ALTER TABLESPACE AAA COALESCE; 才有空间 三、truncate 调整high water mark 而delete不.truncate之后,TABLE的HWM退回到 INITIAL和NEXT的位置(默认) delete 则不可以。 四、truncate 只能对TABLE delete 可以是table,view,synonym 五、TRUNCATE TABLE 的对象必须是本模式下的,或者有drop any table的权限 而 DELETE ...
SQL adheres to the ANSI SQL standard, ensuring a degree of portability and compatibility across different database platforms. Data definition language is used to create, drop, alter, and truncate in a database. Data manipulation language is used to insert, update, and delete data in the data...
4. Truncate operation consumes fewer system resources and transaction log resources than the Delete operation, therefore, Truncate is considered as faster than Delete. 5. Also, Delete does not deallocate space used by the table, whereas Truncate frees the space used after execution, so Delete is ...
The key distinction between truncate and delete is that the TRUNCATE command does not contain the WHERE clause, despite the fact that it acts similarly to the D
What is Difference between TRUNCATE and DELETE statement in SQL Server is most common question asked in the interview.
4.Similarities Between DDL and DML 5.Side by Side Comparison – DDL vs DML in Tabular Form 6.Summary What is DDL? DDL stands forData Definition Language. This language is used to change the structure of the database. Create, Alter, Drop,Truncateare some DDL commands. ...
What is the difference between drop and truncate and delete command in SQL, SQL TRUNCATE statement is useful for deleting all rows present in a table with the intent of freeing up table space. SQL Delete statement comes in handy for deleting rows from an
deny drop permission to user ?? Derived table 'tablename' is not updatable because a column of the derived table is derived or constant. Determine when rollback is complete Difference between .bak and .trn files Difference between backup size and data size Difference between create table and ...
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ALTER - alters the structure of the database DROP - delete objects from the database TRUNCATE - remove all records from a table, including all spaces allocated for the records are removed COMMENT - add comments to the data dictionary