WHILE (@RowNo < = @Tot_Count) BEGIN Print @TempStartDate SET @DSQL = 'SELECT F1 FROM Evaluation.CalculatedLimits_' + CAST(@PlantLineMapId as varchar) + ' WHERE PROCESS = 2 AND TIMESTAMP = ' + '''+CONVERT(nvarchar(50), @TempStartDate,121)+''' SET @RowNo = @RowNo + 1 END ...
这样就跳出循环了，也可以换成RETURN，RETURN会结束整个批查询的执行，BREAK仅仅跳出循环，继续执行后边的语句。给你个例子:for loop是这样的:createprocedure probegindeclare aintdefault1;label1: loopif a<6thenselecta;seta=a+1;iterate label1;endif;leave label1;跳出循环endloop label1;endwhile是...
WHILE @Loop <= 100000 BEGIN Set @PRID = NewID() Set @PRDesc = ' PerformanceIssue - ' + Convert( Varchar(10),@Loop ) Insert Into PerformanceIssue Values (@PRID, @Loop, @PRDesc) Set @Loop = @Loop + 1 END 脚本成功执行后,数据就添加进去了。 用下面语句来看一下表的内容: Select PRID...
MySQL存储过程支持IF、CASE、LOOP、WHILE等控制结构。 MSSQL存储过程也支持类似的IF、CASE、WHILE等控制结构,但语法略有不同。 MySQL示例: MySQL示例: MSSQL示例: MSSQL示例: 系统存储过程: MySQL和MSSQL都提供了系统存储过程,但名称和功能可能有所不同。例如,MySQL的系统存储过程以sp_开头,而MSSQL的系统存储过程...
while@loop_time<=@max_ids begin select@file_bak_path=file_path from@temwhereids=@loop_time select@sql_cmd='dir'+@file_bak_path EXEC@proc_result=master..xp_cmdshell @sql_cmd,no_output /*系统存储过程xp_cmdshell返回代码值:0(成功)或1(失败)*/ ...
建议使用SELECT语句,或While Loop语句实现相同功能 子查询 注意子查询、临时表和表变量的使用 只返回出必须的列,不要包含与处理需求无关的列(*) 变量 变量赋值:请修改为SELECT TOP 1… 动态T-SQL处理语句中,如果涉及到变量,尽量使用sp_executesql,通过参数传递进行处理 ...
Since it is recursive and relies on previous data to generate the next set of results, MSSQL doesn't perform well with parallel execution. Using a Temp Table and While Loop: This approach proved to be slower than my current recursive query, which uses a CTE (Common Table Expressi...
Sub LoopThroughQueryResults() Dim db As DAO.Database Dim rs As DAO.Recordset Dim strSQL As String ' 设置数据库和查询 Set db = CurrentDb strSQL = "SELECT * FROM YourTable" Set rs = db.OpenRecordset(strSQL) ' 循环遍历记录集 Do While Not rs.EOF ' 在这里执行你的操作,例如: De...
-- Wrap the log if necessary.WHILE @MaxMinutesDATEDIFF (mi, @StartTime, GETDATE()) -- time has not expiredAND @OriginalSize = (SELECT size FROM sysfiles WHERE name = @LogicalFileName)AND (@OriginalSize * 8 /1024)@NewSizeBEGIN -- Outer loop.SELECT @Counter = 0WHILE ((@...
name: mssql-tools labels: name: mssql-tools spec: containers: - name: mssql-tools image: mcr.microsoft.com/mssql-tools:latest 但它不断地给出CrashLoopBackOff错误。 $ kubectl get pods NAME READY STATUS RESTARTS AGE mssql-tools 0/1 CrashLoopBackOff 11 (8s ago) 14m ...