CREATE TABLE #TempTable (TT_Col1 INT ) DECLARE @TableVariable TABLE (TV_Col1 INT ) INSERT #TempTable VALUES ( 1 ) INSERT @TableVariable VALUES ( 1 ) BEGIN TRANSACTION INSERT #TempTable VALUES ( 2 ) INSERT @TableVariable VALUES ( 2 ) ROLLBACK SELECT * FROM #TempTable /* TT_Col1 ...
-- Create a temporary table to store intermediate results CREATE TEMPORARY TABLE temp_results AS SELECT column1, COUNT(*) AS count_value FROM large_table WHERE condition1 GROUP BY column1; -- Use the temporary table to optimize the final query SELECT column1, column2 FROM temp_results WHERE...
IF OBJECT_ID('tempdb..##table_temporary') IS NOT NULL BEGIN DROP TABLE ##table_temporary end CREATE TABLE ##table_temporary ( EmpCode VARCHAR(40) NOT NULL, EmpName NVARCHAR(40) NOT NULL ); INSERT INTO ##table_temporary ( EmpCode, EmpName ) SELECT EmpCode, EmpName FROM [dbo].[Empl...
create procedure Proc_TestTempTable as begin create table #t20170413 ( col_1 varchar(100) , col_2 varchar(100) ) insert into #t20170413 values ('aaa','bbb'); select * from #t20170413 --select * from tempdb.sys.tables where name like '#t20170413%' end 在存储过程创建之后,第一次执行...
適用於:Microsoft Fabric 中的 SQL ServerAzure SQL 資料庫 Azure SQL 受控執行個體 SQL 資料庫 在資料庫中建立新的數據表。 注意 如需在 Microsoft Fabric 中倉儲的參考,請流覽 CREATE TABLE (網狀架構數據倉儲)。 如需 Azure Synapse Analytics 和分析平台系統 (PDW) 的參考,...
Temporary tables Visa 13 fler Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL database in Microsoft Fabric Creates a new table in the database. Anteckning For reference to Warehouse in Microsoft Fabric, visit CREATE TABLE (Fabric Data Warehouse). For reference to ...
SQL Server会自动创建一个名为tempdb的数据库作为工作空间使用,当您在存储过程中创建一个临时表格时,比如(CREATE TABLE #MyTemp),无论您正在使用哪个数据库,SQL数据库引擎都会将这个表格创建在tempdb数据库中。 而且,当您对大型的结果集进行排序,比如使用ORDER BY或GROUP BY或UNION或执行一个嵌套的SELECT时,如果数据...
Create the table based on the SELECT statement Insert the rows from the results of the SELECT statement If row insertion fails, the temporary table will exist, but it will be empty. If you don’t want that to happen, use explicit transactions. ...
SERVER CONFIGURATION SERVER ROLE SERVICE SERVICE MASTER KEY SYMMETRIC KEY TABLE TABLE column_constraint TABLE column_definition TABLE computed_column_definition TABLE index_option TABLE table_constraint TRIGGER User VIEW WORKLOAD GROUP XML SCHEMA COLLECTION バックアップと復元 CREATE 照合順序 DROP アクセ...
SELECT INTONameSELECT INTO -- 从一个查询的结果中创建一个新表SynopsisSELECT [ ALL | DISTINCT [ ON ( expression [, ...] ) ] ]* | expression [ AS output_name ] [, ...]INTO [ TEMPORARY | TEMP ] [ TABLE ] new_table[ FROM from_item [, ...] ][ WHERE condition ][ GROUP BY ...