在 SQL Server DB 中使用 PowerShell 插入字符串值. [英] Using PowerShell insert string values in SQL Server DB.

问题描述

我有一长串需要插入到单列 SQL 服务器表中的值.我使用以下代码.然而，这需要很长时间.有没有更简单的方法来实现这一目标?

I have a long list of values that need to be inserted in a single column SQL server table. I use the following code. However, it takes a long time. Is there an easier way to achieve this?

$list = 'aaa','bbb','cccc','ddddd','eeeee','ffff'....

    foreach($i in $list) {
        $sql ="if not exists (select 1 from [table_nm] where column_nm = '$i' ) 
            begin 
              insert table_nm
              select '$i'
            end
            " 

        Invoke-Sqlcmd -ServerInstance $server -Database db_nm -query $sql               
        }

推荐答案

试试这个，它会在一个连接上运行，这样你就可以避免@vonPryz 的昂贵开销:

Try this, it will ride on a single connection so you will avoid the expensive overhead as per @vonPryz:

$list = 'aaa','bbb','cccc','ddddd','eeeee','ffff'....
$server = "server1"
$Database = "DB1"

$Connection = New-Object System.Data.SQLClient.SQLConnection
$Connection.ConnectionString = "server='$Server';database='$Database';trusted_connection=true;"
$Connection.Open()
$Command = New-Object System.Data.SQLClient.SQLCommand
$Command.Connection = $Connection
foreach($i in $list) {
    $sql ="if not exists (select 1 from [table_nm] where column_nm = '$i' ) 
        begin 
        insert table_nm
        select '$i'
        end
    " 
    $Command.CommandText = $sql
    $Command.ExecuteReader()
}
$Connection.Close()

这篇关于在 SQL Server DB 中使用 PowerShell 插入字符串值.的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！