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SQL in Oracle 11g Tutorial #7: Alter table( Add, Delete , Enable and Disable Primary Key)
 
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SQL in Oracle 11g Tutorial #7: Alter table( Add, Delete , Enable and Disable Primary Key). This video will explain you the following: 1. How to Add the Primary Key 2. How to delete the primary Key 3. How to Enable the Primary Key 4. How to disable the primary key Thanks for Watching my Channel “Learn TechToTech”. Please subscribe my channel for getting first updates after uploading video.Social Media pages of Channel are: 1. My Website : www.learnfromrakesh.com 2. My Twitter: https://twitter.com/LearnTechtotech 3. Facebook Page: https://www.facebook.com/LearnTechToTech 4. Blogger : https://learntechtotech.blogspot.in/ 5. Google+ : https://learntechtotech.blogspot.in/ 6. Pinterest : https://in.pinterest.com/LearnTechToTech/ 7. LinkedIn: https://www.linkedin.com/in/Learntechtotech/ Playlist of Different Technology: 1. Operating System : https://goo.gl/q6SfrW 2. Python Programming Language : https://goo.gl/L8b5dc 3. C Language : https://goo.gl/SwvDu9 4. C language for Placement: https://goo.gl/AaQBa4 5. Java: https://goo.gl/M8F2uy 6. MySql : https://goo.gl/vdJbHQ 7. Android Mobile Application Development: https://goo.gl/M6woaT 8. Kotlin Programming Language : https://goo.gl/GXE5cd 9. Go Programming: https://goo.gl/Ua3xYW 10. Internet of Things(IoT): https://goo.gl/f2afkY 11. Oracle 11g : https://goo.gl/zds8r2 12. C++ : https://goo.gl/C1psMT
Views: 293 Learn TechToTech
Index DISABLE
 
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Index Disable Index Rebuild
Views: 148 Yusuf Kahveci
Index Rebuild vs. Reorganize
 
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Some of my thoughts about performing either, or any at all. In some cases, I won't use indexes.
Views: 3895 SQLInSix Minutes
Oracle Core,  Лекция 4
 
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Ссылка на файл с презентацией: https://docs.google.com/presentation/d/1hqsC6hEGybAbEEPko56razF7eLBJQEZ3L-ECWtp7rbM/edit?usp=sharing (презентация может быть с анимацией) Ссылка на краткий конспект лекции:https://docs.google.com/document/d/1UFayi0YIXxLrRuj4-JZj-jooyvpoa4rKLOryBloTtag/edit?usp=sharing 1. Create table: permanent tables, temporary tables (on commit delete/preserve rows) 2. Physical properties таблицы: tablespace, logging, pctfree, pctused, initrans 3. Pctfree и pctused 4. Initrans и maxtrans 5.Storage clause: initial, next, minextents, maxextents, pctincrease, freelists, freelist groups, optimal, buffer_pool (keep,recycle), flash_cache (keep, none), encrypt 6. Table properties: column_properties, cache, result_cache, enable_disable_clause, flashback_archive_clause 7. Alter table: column_clause, constraint_clause, alter_table_partitioning, move_table_clause, enable_disable_clause, rename to, shrink space 8. High water mark. Low high water mark 9. Create index: table index clause, index_expr, index_properties, unusable 10. Reverse indexes 11. Function based indexes 12. Alter index: сжатие (shrink space), параллелизм, физические атрибуты (pctfree, pctused, initrans), logging/nologging, rebuild, enable/disable, unusable, visible/invisible, rename to 13. Индекс по внешнему ключу 14. Причины неиспользования индексов 15. Оператор truncate 16. Неявный commit при выполнении ddl 17. Словари данных Oracle Database, БД Oracle, вебинар Oracle, презентация Oracle, урок Oracle, лекция Oracle, обучение Oracle
Alter database table columns without dropping table   Part 67
 
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In this video, we will discuss, altering a database table column without having the need to drop the table. Let's understand this with an example. Text version of the video http://csharp-video-tutorials.blogspot.com/2013/08/part-67-alter-database-table-columns.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-67-alter-database-table-columns.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists We will be using table tblEmployee for this demo. Use the sql script below, to create and populate this table with some sample data. Create table tblEmployee ( ID int primary key identity, Name nvarchar(50), Gender nvarchar(50), Salary nvarchar(50) ) Insert into tblEmployee values('Sara Nani','Female','4500') Insert into tblEmployee values('James Histo','Male','5300') Insert into tblEmployee values('Mary Jane','Female','6200') Insert into tblEmployee values('Paul Sensit','Male','4200') Insert into tblEmployee values('Mike Jen','Male','5500') The requirement is to group the salaries by gender. To achieve this we would write a sql query using GROUP BY as shown below. Select Gender, Sum(Salary) as Total from tblEmployee Group by Gender When you execute this query, we will get an error - Operand data type nvarchar is invalid for sum operator. This is because, when we created tblEmployee table, the "Salary" column was created using nvarchar datatype. SQL server Sum() aggregate function can only be applied on numeric columns. So, let's try to modify "Salary" column to use int datatype. Let's do it using the designer. 1. Right click on "tblEmployee" table in "Object Explorer" window, and select "Design" 2. Change the datatype from nvarchar(50) to int 3. Save the table At this point, you will get an error message - Saving changes is not permitted. The changes you have made require the following tables to be dropped and re-created. You have either made changes to a table that can't be re-created or enabled the option Prevent saving changes that require the table to be re-created. So, the obvious next question is, how to alter the database table definition without the need to drop, re-create and again populate the table with data? There are 2 options Option 1: Use a sql query to alter the column as shown below. Alter table tblEmployee Alter column Salary int Option 2: Disable "Prevent saving changes that require table re-creation" option in sql server 2008 1. Open Microsoft SQL Server Management Studio 2008 2. Click Tools, select Options 3. Expand Designers, and select "Table and Database Designers" 4. On the right hand side window, uncheck, Prevent saving changes that require table re-creation 5. Click OK
Views: 86325 kudvenkat
15a  Index Selectivity
 
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Views: 75 B's March
How to alter database in SQL Server (Rename a database)
 
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How to alter database in SQL Server (Rename a database). How to create a database : https://youtu.be/k2F0LrsZP8E
Views: 160 Ninja Developer
Removing an Index
 
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Learn Oracle
Views: 23 حسن محمد
[Modifying Indexes] 1 - Modifying an index using the ALTER INDEX statement
 
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Modifying Indexes Given SQL Server tables named Customer_Details and XMLDocument in ABC_Bank database,you will view and practice how to create and modify an index using Transact-SQL commands. 1 - Modifying an index using the ALTER INDEX statement 2 - Create an XML index 3 - Modifying an XML index using ALTER INDEX command. Learn more and source code at : http://www.tutorialspoint.edu.vn/sql-server/163-maintaining-indexes/12611-workshop-maintaining-indexes.html
Views: 432 little fire
Oracle 10g / Forms Builder / Update & Delete
 
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تحديث وحذف البيانات في واجهات الأوراكل.
Views: 15454 Saif Academy
Oracle - SQL - Not Null Constraint
 
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Oracle - SQL - Not Null Constraint Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
How to Shrink table in Oracle..
 
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this video will help how to reclaim space from the table.
Views: 1596 oracdb
Set business rules with check constraints in oracle.
 
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Check constraint is used to validate data according to business logic, whether it be limiting the value range or allowing some specific string format or data format. This oracle tutorial is about how to add, remove, enable or disable check constraints in oracle 12c. Here are the list of ddl commands for check constraint: ALTER TABLE table_name ADD CONSTRAINT constraint_name CHECK column_name condition [DISABLE]; ALTER TABLE table_name DROP CONSTRAINT constraint_name; ALTER TABLE table_name ENABLE CONSTRAINT constraint_name; ALTER TABLE table_name DISABLE CONSTRAINT constraint_name;
Views: 473 Subhroneel Ganguly
How to drop primary key clustered index using query window
 
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When dropping a primary key clustered index using query window you will get msg 3723 - An explicit DROP INDEX is not allowed on index 'Table.PK__Table__3214EC079D3D6FE5'. - It is being used for PRIMARY KEY constraint enforcement. for more about it: www.mybook-lang.com
Views: 172 Devendra Gohel
Constraints In SQL | ORACLE
 
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This video explains you about constrains.
Views: 203 Online Pl Sql
56. ALTER TABLE to ADD and DROP integrity constraints in PL/SQL Oracle
 
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In this video you will learn about ALTER TABLE to ADD and DROP integrity constraints in PL/SQL Oracle. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 3135 ITORIAN
TABLESPACE MANAGEMENT RENAME OR MOVE A DATAFILE
 
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RENAME OR MOVE A DATAFILE (when there is space issue in os level file movement is required) ========================== 1)TABLESPACE SHOULD BE OFFLINE(when we move or rename a datafile users should not access) 2)FROM OS LEVEL DATAFILE COPY TO NEW LOCATION 3)SQL LEVEL RENAME THE DATAFILE TO NEW LOCATION 4)MAKE THE TABLESPACE ONLINE alter tablespace king offline; os level rename king01.dbf TO GOODKING01.dbf os level move the file to new location(KING02.DBF) alter tablespace king rename datafile 'E:\DATABASE\DATABASE\ORADATA\ORCL\KING01.DBF' to 'E:\DATABASE\DATABASE\ORADATA\ORCL\GOODKING01.DBF'; alter tablespace king rename datafile 'E:\DATABASE\DATABASE\ORADATA\ORCL\KING02.DBF' TO 'D:\ORADATA\KING02.DBF'; alter tablespace king online; HOW TO CHECK DATAFILES INFO IN PARTICULAR TABLESPACE ===================================================== COL FILE_NAME FOR A50 COL TABLESPACE_NAME FOR A20 select tablespace_name,file_name from dba_data_files where tablespace_name like '&tablespace_name';
Views: 719 Praveen Biyyapu
[Dropping an Index] 1 -  Dropping an index using the DROP INDEX command
 
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Dropping an Index Given SQL Server tables named Customer_Details and XMLDocument in ABC_Bank database,you will view and practice how to drop an index using Transact-SQL commands 1 - Dropping an index using the DROP INDEX command 2 - Dropping an index created on a PRIMARY KEY Learn more and source code at : http://www.tutorialspoint.edu.vn/sql-server/163-maintaining-indexes/12611-workshop-maintaining-indexes.html
Views: 672 little fire
SQL tutorials 17: SQL Primary Key constraint,  Drop primary Key
 
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Blog link: http://www.rebellionrider.com/sql-primary-key.htm SQL tutorial on Primary key / SQL Primary key, In this tutorial you will learn about simple primary key, composute primary key, how to drop primary key. defining primary key using create table and alter table along with many other things. Tool used in this tutorial is SQL Developer. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com So Primary Key There are two types of Primary keys First is Simple primary Key: Primary key which Involves only one column and Second is Composite Primary Key: Primary Key which involves more than one column. We will start with Simple primary key. You can create Primary key either with Create Table statement of by using Alter table Statement. Let's define simple primary key using create table statements. With create table statement we can either define primary key at column level or at table level. We will start with defining Primary key at column level using create table statement. You just have to put keyword Primary key after data type and size of column while defining a column of a table. Here oracle server will create a primary key on product id with default constraint name which will be slightly difficult to understand. You can give your own name to your constraint which is also a good practice.
Views: 96738 Manish Sharma
How to Create, Alter, Resize, Drop Tablespace (Tablespace Management #1)
 
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Hello Today I am showing you how to create tablespace. Alter tablespace datafile using fileid & filename and resize datafile. How to check Tablespace Size. How to check datafile Size in MB. How to drop Tablespace including contents and all Datafiles of these tablespace.
Views: 973 Parag Mahalle
Oracle Unique Constraint تعليم اوراكل
 
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by Mohamed El Desouki - محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز - السعودية - الخرج How To Add Unique Constraint to Table. Unique كيف تستخدم قيد الــ Text Book: Fundamentals of Database Systems, 5th Edition, by Elmasri/Navathe, published by Addison-W oracle create table statement oracle drop table statement oracle constraints database constraints primary key constraint foreign key constraint check constraint null not null constraint unique constraint
DDL Triggers in sql server
 
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ddl trigger example ddl trigger example in sql server ddl triggers can be used to In this video we will discuss DDL Triggers in sql server. In SQL Server there are 4 types of triggers 1. DML Triggers - Data Manipulation Language. Discussed in Parts 43 to 47 of SQL Server Tutorial. 2. DDL Triggers - Data Definition Language 3. CLR triggers - Common Language Runtime 4. Logon triggers What are DDL triggers DDL triggers fire in response to DDL events - CREATE, ALTER, and DROP (Table, Function, Index, Stored Procedure etc...). For the list of all DDL events please visit https://msdn.microsoft.com/en-us/library/bb522542.aspx Certain system stored procedures that perform DDL-like operations can also fire DDL triggers. Example - sp_rename system stored procedure What is the use of DDL triggers If you want to execute some code in response to a specific DDL event To prevent certain changes to your database schema Audit the changes that the users are making to the database structure Syntax for creating DDL trigger CREATE TRIGGER [Trigger_Name] ON [Scope (Server|Database)] FOR [EventType1, EventType2, EventType3, ...], AS BEGIN -- Trigger Body END DDL triggers scope : DDL triggers can be created in a specific database or at the server level. The following trigger will fire in response to CREATE_TABLE DDL event. Use SampleDB Go CREATE TRIGGER trMyFirstTrigger ON Database FOR CREATE_TABLE AS BEGIN Print 'New table created' END To check if the trigger has been created 1. In the Object Explorer window, expand the SampleDB database by clicking on the plus symbol. 2. Expand Programmability folder 3. Expand Database Triggers folder Please note : If you can't find the trigger that you just created, make sure to refresh the Database Triggers folder. When you execute the following code to create the table, the trigger will automatically fire and will print the message - New table created Create Table Test (Id int) The above trigger will be fired only for one DDL event CREATE_TABLE. If you want this trigger to be fired for multiple events, for example when you alter or drop a table, then separate the events using a comma as shown below. ALTER TRIGGER trMyFirstTrigger ON Database FOR CREATE_TABLE, ALTER_TABLE, DROP_TABLE AS BEGIN Print 'A table has just been created, modified or deleted' END Now if you create, alter or drop a table, the trigger will fire automatically and you will get the message - A table has just been created, modified or deleted. The 2 DDL triggers above execute some code in response to DDL events (CREATE_TABLE, ALTER_TABLE, DROP_TABLE). Now let us look at an example of how to prevent users from creating, altering or dropping tables. To do this modify the trigger as shown below. ALTER TRIGGER trMyFirstTrigger ON Database FOR CREATE_TABLE, ALTER_TABLE, DROP_TABLE AS BEGIN Rollback Print 'You cannot create, alter or drop a table' END To be able to create, alter or drop a table, you either have to disable or delete the trigger. To disable trigger 1. Right click on the trigger in object explorer and select "Disable" from the context menu 2. You can also disable the trigger using the following T-SQL command DISABLE TRIGGER trMyFirstTrigger ON DATABASE To enable trigger 1. Right click on the trigger in object explorer and select "Enable" from the context menu 2. You can also enable the trigger using the following T-SQL command ENABLE TRIGGER trMyFirstTrigger ON DATABASE To drop trigger 1. Right click on the trigger in object explorer and select "Delete" from the context menu 2. You can also drop the trigger using the following T-SQL command DROP TRIGGER trMyFirstTrigger ON DATABASE Certain system stored procedures that perform DDL-like operations can also fire DDL triggers. The following trigger will be fired when ever you rename a database object using sp_rename system stored procedure. CREATE TRIGGER trRenameTable ON DATABASE FOR RENAME AS BEGIN Print 'You just renamed something' END The following code changes the name of the TestTable to NewTestTable. When this code is executed, it will fire the trigger trRenameTable sp_rename 'TestTable', 'NewTestTable' The following code changes the name of the Id column in NewTestTable to NewId. When this code is executed, it will fire the trigger trRenameTable sp_rename 'NewTestTable.Id' , 'NewId', 'column' Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/ddl-triggers-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/ddl-triggers-in-sql-server_9.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 56914 kudvenkat
Oracle Constraints Easy way
 
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Oracle Constraints Easy way
Views: 75 laks nayan
UNIQUE KEY CONSTRAINT IN ORACLE SQL WITH EXAMPLE
 
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This is a free video tutorial by Kishan mashru on unique constraint in Oracle SQL, the video firstly explains what unique constraint is and how it can be used along with its various limitations, then the video gives perfect examples to understand how to create a unique key at the column level or inline, or at the table level i.e out of line. The video gives a demonstration on ALTER TABLE ADD CONSTRAINT and ALTER TABLE DROP CONSTRAINT statements also.
Views: 891 Kishan Mashru
How to auto-optimize SQL code with Toad for Oracle Xpert Edition
 
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http://www.DellSoftware.com/Toad-for-Oracle This video shows how to auto-optimize SQL code with Toad for Oracle Xpert Edition from Dell Software.
Views: 6527 DellTechCenter
SQL Server  Disabling Triggers
 
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3. Disabling Triggers
Views: 118 Eagle
11-How to create an index for a column in a table in a SQL Server database
 
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Original high quality video: http://www.dotnetcodecentral.com/Post/130/microsoft-sql-server-quick-learn-how-to/How-to-create-an-index-for-a-column-in-a-SQL-Server-table All high quality videos on SQL Server (FREE to download): http://www.dotnetcodecentral.com/Technology/microsoft-sql-server-quick-learn-how-to Demonstrates the following (using SQL Server Management Studio): -Open a table in design mode (to modify table structure) -Add an index to a column in a table
Views: 16166 Jagadish Pulakhandam
SQL Tutorial - 04 - Alter Drop
 
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This SQL tutorial lives at: http://www.pvtuts.com/sql/sql-alter-drop The video covers the alter and drop statements.
Views: 20796 ProgrammingVideos
Sql Server Tutorial:Create ,Alter and Drop a database Part-2
 
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How To Create,Alter, Drop A Database In Sql Server Create, Alter And Drop - Database And Table - Sqlrelease Drop Database (Transact-Sql) - Msdn - Microsoft Create, Alter, And Drop Filetables - Msdn - Microsoft Sql Alter Table Statement - W3schools Sql Create Index Statement - W3schools Sql Create/Alter/Drop Schema - W3resource Sql Create/Alter Database - W3resource How To Force Drop Database In Sql Server 2008 - Database ... How To Create, Alter, Rename, And Drop Tables In Sql ... Dropping Creating And Altering Databases In Microsoft Sql Server ... Sql Add Column Sql Update Sql Drop Table Sql Insert Into Sql Create Table String Or Binary Data Would Be Truncated. Sql Server: Alter Table Statement - Techonthenet Dropping An Offline Database In Sql Server - Brent Ozar Unlimited® Auditing Ddl (Create, Alter, Drop) Commands In Sql Server 2005 Ddl Triggers For Auding Database Objects In Sql Server - Sql Book Selecting, Creating, Dropping, And Altering Databases | Mysql Sql ... Sql Drop Or Delete Database - Tutorialspoint Sql Server - Alter Database Dbname Set Single_User ... How I Completely Remove A Sql Server Database - Blog Pieter ... Mysql 5.7 Reference Manual :: 7.2.1 Privileges Provided By Mysql Drop Triggers In Sql | Sql Add Column Sql Update Sql Drop Table Sql Insert Into Sql Create Table String Or Binary Data Would Be Truncated. How To Create,Alter, Drop A Database In Sql Server
Difference Between Delete and Truncate
 
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Below is link for Useful Pl/SQL Books http://goo.gl/XMy0tt ---------------------------------------------------------- Difference Between Delete and Truncate in Detail On bigger picture they serve the same purpose but there are many Differences listed with examples Point Delete Truncate 1. Data Recovery Delete: Come under the DML Category, we need to commit or Rollback explicitly to make the changes permanent, so we can recover the data by Rollback command fully with in a session or up to a point if Save Points are used Fall In DDL Category (DDL Command issue the Auto commit implicitly) so no chances of Recovery even not using the Flashback table method. But Truncate operations are also logged , they didn’t generate redo SQL but they are logged , view for truncated data info V$LOGMNR_CONTENTS 2. Data Removal Delete Can remove all or selected data using the Where Clause predicates. Or we can say delete any subset of rows We can Truncate complete table or a partition or sub partition of a table. 3. Speed Delete is Slower because oracle maintain the redo logs for Read Consistency (so that every session connected can see a consistent data at a given point of time ) Delete is very time consuming activity especially when table have numerous indexes and Triggers associated with table Faster as no data logs are maintained no associated trigger firing. 4. DML Triggers Firing DML (Delete) triggers associated with table will fire. DML Trigger will not fire in case of truncate method. 5. Flashback Technology Data can be recovered even after commit operation using Flashback Table options Flashback_transaction_query table will give what to recover and up to which point. Data cannot be recovered in truncate method by Flashback table option. 6. Referential Integrity Constraint Behavior if we don’t have related data in child table then we can delete the data from the parent table or we have variants like On Delete Cascade & on Delete set Null. We can’t truncate a table with enable Referential Integrity Constraint, even there is no data in the child table, we have to disable or drop the constraint if we want to truncate the table. Exception: Truncate is possible if the FK is self-referential means primary key and foreign key are on the same table. 7. Space De allocation or Space Utilization No extent reset with delete when deleting rows from a table, extents are not de allocated, So if there were 50 extents in the table before the deletion, there will still be 50 after the deletion. Truncate: When a table is truncated it will free the space allocated except in case of reuse storage clause. This space can subsequently be used only by new data in the table or cluster resulting from insert or update operations .All extents are de allocated leaving only the extents specified when the table was originally created .Example So if the table was originally created with min extents 3, there will be 3 extents remaining when the tables is truncated. When you truncate a table, NEXT is automatically reset to the last extent deleted. 8. High Water Mark Delete will not reset the high water mark Truncate will reset the High Water mark which is very important for performance point of view as in case of full table scan and full index scan oracle will read all the block under high water mark this makes a lot of difference in terms of performance. 9. Cluster No as such restriction with delete. You cannot individually truncate a table that is part of a cluster. You must truncate the cluster, Delete all rows from the table, or drop and re-create the table. 10. Information Capturing Delete : we can capture the row information what we have deleted using Delete Method, f you are deleting multiple records then use composite data types (collections & records) Truncate Don’t have this feature of capturing the deleted records. 11. Function Based Index Impact DELETE You cannot delete rows from a table if a function-based index on the table has become invalid. You must first validate the function-based index. Truncate: No as such restriction 12. UNUSABLE Indexes Delete no as such feature. Truncate if table is not empty then truncate make all unusable indexes to useable. 13. Complex views You cannot delete data from a Complex view except through INSTEAD OF triggers. But we can delete data from simple Views and MV. We cannot truncate a view simple or complex but you can truncate MV with special Features like Preserve MV Logs and Purge MV Logs. 14. Privileges Delete You need to provide delete table privilege on object. Truncate you must have drop table privilege there is no truncate table privilege exists. 15. Domain Index No as such restriction You cannot truncate the object having domain index in invalid or In progress state
Views: 12636 Ram Gupta
SQL Server Tutorial 20:  Table, Index and Row Compression
 
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How to use table, index and row compresson with SSMS or T-SQL. For more info, or a copy of the scripts used in this tutorial, please email me at [email protected]
Views: 2856 Johnny Deluca
SQL in Oracle 11g Tutorial #9: Implementation/Example of Primary Key and Foreign Key
 
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SQL in Oracle 11g Tutorial #9: Implementation/Example of Primary Key and Foreign Key. How to create a Primary Key. How to create a Foreign Key. Thanks for Watching my Channel “Learn TechToTech”. Please subscribe my channel for getting first updates after uploading video.Social Media pages of Channel are: 1. My Website : www.learnfromrakesh.com 2. My Twitter: https://twitter.com/LearnTechtotech 3. Facebook Page: https://www.facebook.com/LearnTechToTech 4. Blogger : https://learntechtotech.blogspot.in/ 5. Google+ : https://learntechtotech.blogspot.in/ 6. Pinterest : https://in.pinterest.com/LearnTechToTech/ 7. LinkedIn: https://www.linkedin.com/in/Learntechtotech/ Playlist of Different Technology: 1. Operating System : https://goo.gl/q6SfrW 2. Python Programming Language : https://goo.gl/L8b5dc 3. C Language : https://goo.gl/SwvDu9 4. C language for Placement: https://goo.gl/AaQBa4 5. Java: https://goo.gl/M8F2uy 6. MySql : https://goo.gl/vdJbHQ 7. Android Mobile Application Development: https://goo.gl/M6woaT 8. Kotlin Programming Language : https://goo.gl/GXE5cd 9. Go Programming: https://goo.gl/Ua3xYW 10. Internet of Things(IoT): https://goo.gl/f2afkY 11. Oracle 11g : https://goo.gl/zds8r2 12. C++ : https://goo.gl/C1psMT
Views: 81 Learn TechToTech
SQL tutorial 40: DBA Trick, How to drop a user when it is connected to the database
 
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Watch in HD,Dropping a user is easy only when it is not connected to the database what if it is connected. Learn how to drop a user when it is connected to the database as well as when it is not connected, along with the cascade drop and introduction of Startup RESTRICT mode of Oracle database. ------------------------- Topics cover 1. Drop user when it is not connected to the database 2. Drop user cascade 3. Drop user when it is connected to the database 4. How to kill a session 5. Oracle Start-up Restrict 6. What is Restrict Start-up and why we use it. Please please LIKE and SHARE my videos it makes me happy. Links: Detail Blog (Must Read) http://bit.ly/drop-user Tutorial 38 Create user using SQL Developer http://youtu.be/GS4udgR44Ls Tutorial 37 Create user using SQL create user statement http://youtu.be/4QbK2Y-1LZw Tutorial 39 create user using EM http://youtu.be/zGjh-Bb3HrI Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 Amazon Wishlist: http://bit.ly/wishlist-amazon Follow What I am up to as it happens on Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ You can also Email me at [email protected] Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com
Views: 20984 Manish Sharma
MSSQL   Check if index exists and if exists delete it
 
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More: http://howtodomssqlcsharpexcelaccess.blogspot.ca/2016/02/mssql-check-if-index-exists-and-if.html
Views: 417 Vis Dotnet
SQL Constraints
 
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Learn more on www.pravendragaur.com Constraints are the rules which applied on data columns on table. These are used to limit the type of data that can go into a table. This ensures the accuracy and reliability of the data in the database. Constraints could be column level or table level. Column level constraints are applied only to one column, whereas table level constraints are applied to the whole table. Types of Constraints 1. Unique 2. Not null 3. Primary Key 4. Check 5. Foreign Key
Views: 136 Pravendra Gaur
ENABLE | DISABLE All Triggers in SQL Server Tamil
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Triggers are enabled by default when they are created. Disabling a trigger does not drop it. The trigger still exists as an object in the current database. However, the trigger does not fire when any Transact-SQL statements on which it was programmed are executed. Triggers can be re-enabled by using ENABLE TRIGGER. DML triggers defined on tables can be also be disabled or enabled by using ALTER TABLE Explained in Tamil
Views: 106 IT Port
Deferrable Initially Deffered- Oracleadda.com
 
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Deferrable keyword in SQL. This is used where we need to invalidate referential integrity between two tables while inserting the data. By using this keyword, the integrity check can be made at the time of committing the transaction. Please visit : www.oracleadda.com and post any queries related to Oracle. Will reply you back at earliest. Thank You
Views: 1509 Oracleadda
Oracle database tablespace management
 
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http://www.justperfect.in/
How Search Data From Table using Oracle 10g
 
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This video gives Information about How Search Data From Table using Oracle 10g
Views: 38 AvilTwo Beginer
Create, Alter, Drop unique constraint in SQL Server - Part 12 Tamil
 
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Subscribe to IT PORT : https://www.youtube.com/c/itport28 SQL Server Tutorial in Tamil : https://www.youtube.com/playlist?list=PLouAaeZ4xQ64enJDwWVvN3KduuZRlUrb3 SQL Server Concepts in Tamil : https://www.youtube.com/playlist?list=PLouAaeZ4xQ67kdNIByJKAGBIBhor_h4Hs SQL Server Analytic Functions in Tamil : https://www.youtube.com/playlist?list=PLouAaeZ4xQ65XIU5azEUgLVrBKEl-jWMV SQL Server Tutorial : https://www.youtube.com/playlist?list=PLouAaeZ4xQ66AYrzPtxt2SeeR4UABcBcO SQL Server Concepts : https://www.youtube.com/playlist?list=PLouAaeZ4xQ66zRe8-nDDy-YHY2o0rmbn4 SQL Server Analytic Functions : https://www.youtube.com/playlist?list=PLouAaeZ4xQ64hTsEdhLsVBquE1vERWngX UNIQUE constraint ensures that all values in a column are different. We can create Unique constraint on Single column or Combination of columns. Some of the fields can contain null values as long as the combination of values is Unique. Explained in Tamil
Views: 205 IT Port
32.SQL Server Tutorial-Hindi(DDL Triggers and Disabling triggers)
 
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Explained about DDL triggers for ddl statements such as create,drop,alter and how to disable and enable particular trigger
Views: 4271 lakshmi sowbhagya
ENABLE | DISABLE All Triggers in SQL Server
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Triggers are enabled by default when they are created. Disabling a trigger does not drop it. The trigger still exists as an object in the current database. However, the trigger does not fire when any Transact-SQL statements on which it was programmed are executed. Triggers can be re-enabled by using ENABLE TRIGGER. DML triggers defined on tables can be also be disabled or enabled by using ALTER TABLE
Views: 178 IT Port
20. Tablespace and Datafile in Oracle
 
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In this video you will learn about Tablespaces and Datafiles in detail. We are going to cover something theoretically here because you will be using it frequently in next videos so it is good to watch this before proceeding. For Support =========== Email: [email protected] Contact Form: http://www.learninhindi.com/home/contact Our Social Media ================ Facebook: https://www.facebook.com/LearnInHindi Twitter: https://twitter.com/LearnInHindi For Training & Videos ===================== For more videos and articles visit: http://www.learninhindi.com Free Java Programming In Hindi Course ===================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAwwhMyoLISrxkXTADGp7PH Free Oracle PL/SQL Programming In Hindi Course ============================================== https://www.youtube.com/playlist?list=PLB5DA82419C2D99B6 Free C Programming In Hindi Course ================================== https://www.youtube.com/playlist?list=PLOZ3jentlCDAxKpBLMWogxSdy6BZcsAJq Trips & Tricks Channel ====================== https://www.youtube.com/channel/UCGmLfkuCo-3lHHJXRJ9HUMw Programming in Hindi Channel ============================ https://www.youtube.com/channel/UCudElIDgwNrybeAvXIy1HZQ
Views: 29243 ITORIAN
Database Transactions, part 4: Autocommit Mode
 
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Autocommit modes treats every SQL command as though it was wrapped in a tiny transaction. Learn how to disable autocommit mode and the implications of doing so.
Views: 10119 Barry Brown

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