SQL Server 循環插入數據

關鍵語句

Declare @i int = 0         --說明循環次數
-- 說明需要插入的列值
WHILE @i< 需要插入的次數)
BEGIN
    -- 需要寫入數據的值
    Insert INTO 表名（列名）
        Values(屬性值)
END

例子

DECLARE @i int = 0
declare @OrderKey varchar(50),
    @PlcNum varchar(3),
    @PlcStorageType varchar(1),
    @PlcStorageAdd int ,
    @PlcOperationType varchar(15) ,
    @PlcDataType varchar(10),
    @PlcReadNum int,
    @PlcWriteNum int,
    @PlcIsResident bit,
    @PlcIsPulse bit,
    @Interval int
WHILE @i<20000      --執行插入語句的次數
BEGIN
    set @PlcNum = '0' +CAST( Cast( RAND() * 3 as int) + 1  as varchar(1))  -- PLC編號
    set @PlcStorageType = SUBSTRING ( 'DM' ,CAST( RAND()*2 as int) + 1, 1 )        --寄存器類型
    set @PlcStorageAdd = CAST( RAND()*500 as int) + 1                        --寄存器地址
    set @PlcOperationType = (select Top 1 Names from PlcOperationType  order by newid())    --操作類型    
    set @PlcDataType =( select Top 1 Names from PlcDataType  order by newid())                --數據類型
    set @PlcReadNum = CAST( RAND()*5 as int) + 1            --讀取數量
    set @PlcWriteNum  = CAST( RAND()*5 as int) + 1            --寫入數量
    set @PlcIsResident  =  CAST( RAND()*2 as int)            --是否常駐
    set @PlcIsPulse  = CAST( RAND()*2 as int)                --是否脈沖
    set @Interval = 300                                        --間隔
    set @OrderKey  = @PlcNum + @PlcStorageType + CAST( @PlcStorageAdd as varchar) + @PlcOperationType

    Insert Into OrderDemo(
        OrderKey , PlcNum , PlcStorageType , PlcStorageAdd ,PlcOperationType ,PlcDataType,
        PlcReadNum,PlcWriteNum,PlcIsResident,PlcIsPulse ,PlcCommand ,PlcCommand_Ascii ,Interval
    )values(
        @OrderKey , @PlcNum , @PlcStorageType , @PlcStorageAdd ,@PlcOperationType ,@PlcDataType,
        @PlcReadNum, @PlcWriteNum,@PlcIsResident,@PlcIsPulse ,null ,null ,@Interval
    )
    set @i = @i + 1
END