db2 drop temporary table

variables, there is no Execution Plan Selection Problem (that is, they think there is no optimization stage after the compilation stage). This feature is a good thing sometimes, in some cases, it may cause some trouble. Temporary table Temporary objects are prefixed with # Or #. Temporary tables are

Method 2: If exists (select * From sysobjects where objectproperty (object_id ('# temporary table name'), 'istable') = 1) BeginDrop table # newtableEndGo Method 2 can run. No error is reported, but the temporary table cannot be deleted. Method 3: If exists (s

the drop TABLE statement is used to explicitly remove a temporary table, the system automatically removes the temporary table when it exits its scope: When the stored procedure is complete, the local

after the Select query. Comparison between temporary Oracle tables and SQL-Server temporary tables 1. Temporary tables in SQL-Server are "memory tables" stored in TempDB. The definition of the temporary Oracle Table is stored in the data dictionary. You need to delete the

Consider using Table variables instead of temporary tables. A temporary table is useful when you need to create an index explicitly on a temporary table or use table values for multiple

The tablespace is the logical layer between the database and the tables stored in the database. Create a tablespace in the database and a table in the tablespace. One obvious advantage of using tablespaces is that data can be reasonably distributed and stored on different disks or in different locations on disks, which helps improve data access efficiency. DB2 tablespaces are managed in two ways: system ma

Temporary tables can be very useful, in some cases, to maintain temporary data. The most important thing to know is that the temporary table is that they will be deleted when the current client session terminates When you create a temporary

When using tables in a database, we often encounter two ways to use tables: using temporary tables and table variables. In actual use, how can we flexibly use them in the stored procedure? Although they implement the same functions, in a stored procedure, how does one sometimes use temporary tables instead of table var

name of a temporary table in a table is composed of the table name specified in the create table statement and the digital suffix generated by the system. The table name specified for the local

Drop table # TMP -- delete a temporary table # TMP Create Table # TMP -- create a temporary table # TMP ( Id int identity () not null, -- creates a column ID and Adds 1 to each new reco

When using tables in a database, we often encounter two ways to use tables: using temporary tables and table variables. In actual use, how can we flexibly use them in the stored procedure? Although they implement the same functions, in a stored procedure, how does one sometimes use temporary tables instead of table var

Determines whether a table (temporary table) exists and whether a stored procedure exists.1. Determine whether a formal table or stored procedure has a select * from dbo. sysobjects where id = OBJECT_ID (N 'dbo. users') and type = 'U' -- U tableSelect * from dbo. sysobjects where id = object_id (N 'usp _ insertalipayfe

1, determine whether there is addonearticle this stored procedureIf Exists (select name from sysobjects where name = ' addonearticle ' and type= ' P ')drop procedure Addonearticle2, determine whether there is countar this triggerif exists (SELECT * from dbo.sysobjects WHERE id = object_id (N ' [dbo].[ Countar] ') and OBJECTPROPERTY (ID, N ' istrigger ') = 1)Drop Trigger Countar3, judge whether there is view

When using tables in a database, we often encounter two ways to use tables: using temporary tables and table variables. In actual use, how can we flexibly use them in the stored procedure? Although they implement the same functions, in a stored procedure, how does one sometimes use temporary tables instead of table var

I checked a lot of data about removing duplicates from Mysql Data tables, and it is reliable to create temporary tables. // Deduplication $ Sql1 = "create temporary table tmp_table select * From tablename group by 'name '";$ Pdo1-> exec ($ sql1 );$ Sql2 = "Drop table table

If exists (select * From tempdb .. sysobjects where id = object_id ('tempdb .. # temp ')) Drop table # temp Temporary table You can create local and global temporary tables. The local temporary

In actual use, how can we flexibly use them in the stored procedure? Although they implement the same functions, in a stored procedure, how does one sometimes use temporary tables instead of table variables, and sometimes use table variables instead of temporary tables? Temporary