CREATE TABLE ##test ( a INT, b INT ); INSERT INTO ##test VALUES (1, 1); -- Obtain object ID for temp table ##test SELECT OBJECT_ID('tempdb.dbo.##test') AS 'Object ID'; 结果集如下。 输出 复制 1253579504 获取tempdb (2) 中给定对象 ID 1253579504 的全局临时表名称 SQL 复制 ...
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...
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’ 3.临时表在建立连接时可见,关闭时...
An alias type based on a SQL Server system data type. Alias data types are created with the CREATE TYPE statement before they can be used in a table definition. The NULL or NOT NULL assignment for an alias data type can be overridden during the CREATE TABLE statement. However, the length...
首先temp-table 生命周期默认是 backend级别,即一个backend内部创建了temp-table之后,backend退出的时候会对当前backend 所创建的所有的temp-table进行清理。 使用很简单,按照temp-table的声明周期,有两种使用方式: 1. Backend粒度 该粒度下如果不指定drop temp table的话默认 drop的时机是在 backend 退出的时候。
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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...
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...
The nonscalar types, cursor and table, can't be specified as a parameter data type in either Transact-SQL or CLR functions. If type_schema_name isn't specified, the Database Engine looks for the scalar_parameter_data_type in the following order: The schema that contains the names of SQL...
The nonscalar types, cursor and table, can't be specified as a parameter data type in either Transact-SQL or CLR functions. If type_schema_name isn't specified, the Database Engine looks for the scalar_parameter_data_type in the following order: The schema that contains the names of SQL...