Question

我正在尝试按顺序运行sql查询。如果任何一个sql查询失败，那么windows powershell脚本应该退出并发送电子邮件。应将日志写入日志目录。其中data =＆lt;这将在运行时＆gt;

中传递

以下示例代码：

Invoke-Sqlcmd -Query "SELECT data from emp where data=<run time argument>;" -ServerInstance "MyComputer\MyInstance"  

Invoke-Sqlcmd -Query "SELECT data from class where data=<run time argument>;" -ServerInstance "MyComputer\MyInstance"

Invoke-Sqlcmd -Query "SELECT data from stud where data=<run time argument>;" -ServerInstance "MyComputer\MyInstance"

Invoke-Sqlcmd -Query "SELECT data from cust where data=<run time argument>;" -ServerInstance "MyComputer\MyInstance"

Invoke-Sqlcmd -Query "SELECT data from new where data=<run time argument>;" -ServerInstance "MyComputer\MyInstance"

任何帮助都将不胜感激。

此致

Answer 1

当＆＃34; sql查询失败时它会是什么样子＆＃34;？你可以依赖于Invoke-SqlCmd函数的返回，或者有一个预期的＆＃34;失败＆＃34;消息（或多条消息）。

我不熟悉Invoke-SqlCmd。查看the MSDN page; -AbortOnError看起来像-ErrorLevel一样对你有帮助。

以下是单个预期错误的大纲，并对如何扩展进行了评论。值得将您的查询存储在一个数组中，以便您可以循环然后跳出循环而不是使用线性代码（必须在每个invoke-sqlcmd之后复制并粘贴检查部分

# string with a single error. you could use an array and add
# a foreach ($error in $errors) on the line marked #here
$expectedError = "Failed"

# Functions have to appear above where they are used
Function Check-SQLResults($result){

    # a try-catch statement will execute the code in the try part, going
    # to the catach part on a TERMINATING error
    try{
        # check each line for your expected error
        foreach($line in $result){
            #here
            if($line -like "*$expectedError*"){
                Write-Error "Something went wrong: $line" -ErrorAction Stop
            }
        }

        # true is only returned if none of the result lines are like your error
        return $true
    }catch{

        # false is returned if any lines contain error
        return $false
    }
}

# store the sql outcome in a variable so you can check it
$result = Invoke-Sqlcmd -Query "SELECT data from emp where data=;" -ServerInstance "MyComputer\MyInstance"

# using a function that tells you if the results contain an error or not is neater.
# again, this is manually dealing with errors and invoke-sqlcmd provides other options.
$resultIsErrorFree = Check-SQLResults -result $result

If(resultIsErrorFree -eq $true){
    # execute next invoke-sqlcmd
}else{
    # Send e-mail. $results can be added to body.
}

使用powershell按顺序使用运行时参数调用多个sql

1 个答案: