在PowerShell中捕获不同的sqlcmd退出代码以解决连接/数据问题 [英] Capturing in PowerShell different sqlcmd exitcode for connectivity/data issues

问题描述

我正在从PowerShell调用sqlcmd来执行T-SQL脚本.当前，如果由于使用的数据违反约束等导致错误，我将使用:On Error exit"退出脚本.这是通过PowerShell检测$ SqlcmdProcess.ExitCode为1来解决的.

I am calling sqlcmd from PowerShell to execute a T-SQL script. Currently I am using ":On Error exit" to exit the script if there is an error caused by the data used violating a constraint etc. This is handled by PowerShell detecting the $SqlcmdProcess.ExitCode of 1.

但是，如果数据库存在连接问题，则sqlcmd还将ExitCode设置为1.是否可以将:On Error ExitCode设置为非1的方法?我知道可以使用:Exit(SELECT 2)之类的方法来执行此操作，但我还是希望使用:On Error，因此不必重写脚本.

However, if there is a connectivity issue with the database, sqlcmd also gives an ExitCode of 1. Is there a way to set the :On Error ExitCode to something other than 1? I'm aware of using something like :Exit(SELECT 2) to do this, but I'd rather still use :On Error so I don't have to rewrite the script.

推荐答案

您可以在Powershell中使用exit关键字.这是一个例子

You could use the exit keyword in Powershell. Here's an example

创建一个名为sqlcmdexit.ps1的脚本，其内容如下:

Create a script called sqlcmdexit.ps1, with something like the following:

$result = sqlcmd -S"missing" -d master -Q "select @@servername"
if ($result[1] -like "*Error Locating Server/Instance Specified*" -or $result[1] -like "*Could not open a connection to SQL Server*") {
    exit 99
}

调用脚本并观察存在的代码:

Call script and observe exist code:

C:\Users\Public\bin>.\sqlcmdExit.ps1
Sqlcmd: Error: Microsoft SQL Server Native Client 10.0 : A network-related or instance-specific error has occurred while
 establishing a connection to SQL Server. Server is not found or not accessible. Check if instance name is correct and i
f SQL Server is configured to allow remote connections. For more information see SQL Server Books Online..
Sqlcmd: Error: Microsoft SQL Server Native Client 10.0 : Login timeout expired.

C:\Users\Public\bin>$LASTEXITCODE
99

我不知道设置默认ExitCode的任何方法.使用启动过程，您可以执行类似的操作:

I'm not aware of any way to set default ExitCode. Using start-process you could something similar:

$tempFile = [io.path]::GetTempFileName()
$exitCode = (Start-Process -FilePath "sqlcmd.exe" -ArgumentList @"
-S"missing" -d master -Q "select @@servername"
"@ -Wait -NoNewWindow -RedirectStandardOutput $tempFile -Passthru).ExitCode

if ($exitCode -eq 1) {
    $result = get-content $tempfile
    if ($result[1] -like "*Error Locating Server/Instance Specified*" -or $result[1] -like "*Could not open a connection to SQL Server*") {
        remove-item $tempFile
        Exit 99
    }
}
else {
    remove-item $tempfile
    Exit $exitCode
}

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