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%msg&sql(CREATEGLOBALTEMPORARYTABLETempEmp(EMPNUMINTNOTNULL,NAMELASTCHAR(30)NOTNULL,NAMEFIRSTCHAR(30)NOTNULL,CONSTRAINTEMPLOYEEPKPRIMARYKEY(EMPNUM)))ifSQLCODE=0{w!,"表创建"}else{w!,"SQLCODE=",SQLCODE,": ",%msg}}
First, you create a primary key on a column that must be unique. This can be difficult on a temp table that contains dynamically inserted records. The query used above uses logic that says the records inserted should be unique, but SQL will throw an error if you try to make a primary ...
create temp table aaa (c1 int) on commit drop;指定 temp table aaa 在发生commit 时(比如insert into aaa 操作)触发drop tmp table的行为 create temp table aaa (c1 int) on commit DELETE ROWS;会在提交时 删除事务内对当前temp table 的更新行,temp table本身的drop会在backend 退出时。 create temp ...
这时可以用 create temporary table table_name select id,namefromtable 创建临时表 使用临时表时注意事项: 1.自己所用的数据库账号要有建立临时表的权限; 2.在同一条sql中,不能关联2次相同的临时表,不然,就会报如下错误; RROR 1137: Can’t reopen table: ‘temp_table’ ...
If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...
Temp Table 数据的时效性 (1)On Commit Delete Rows : 数据在 Transaction 期间有效,一旦COMMIT后,数据就被自动 TRUNCATE 掉了; SQL> CREATE GLOBAL TEMPORARY TABLE QCUI_Temp_Trans 2 ON COMMIT DELETE ROWS 3 AS 4 SELECT * FROM t_Department; ...
该表将一直存在,直到显式删除(使用DROP TABLE)。可以使用ALTER TABLE更改表定义。 下面的嵌入式SQL示例创建一个全局临时表: ClassMethod CreateTable3() { d $SYSTEM.Security.Login("_SYSTEM","SYS") n SQLCODE,%msg &sql( CREATE GLOBAL TEMPORARY TABLE TempEmp ( EMPNUM INT NOT NULL, NAMELAST CHAR(30...
I need to create partition on temp table. Can anyone please suggest me is it possible to create. You can partition a table in tempdb exactly as you would partition a table in a user database; create a partition function and scheme and specify the partition scheme on the ON clause of CR...
CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXISTS ] table_name { ({ column_name data_type [ compress_mode ] [ COLLATE collation ] [ column_constraint [ ... ] ] | table_constraint | LIKE source_table [ like_option [...] ] } [, ... ]...