如何在SQL Server查询中将多个select语句导出到不同的csv文件

Question

我有一个很长的SQL服务器查询,它运行在不同的表上,进行一些预处理并吐出不同的选择表输出.我希望它们存储在不同的csv文件中.

简化例如.

-- some declare variables and other pre-processing,
-- then save the outputs to different CSV files
select * from Table1 -- save to Table1_Output.csv
select * from Table2 -- save to Table2_Output.csv

现在,我可以使用它来运行SQLCmd并将单个select语句的输出保存到单个CSV.我需要能够将各种输出保存到不同的CSV

上述解决方案中的第一个选项不可行,因为这需要手动干预,不能在脚本环境中使用.

谢谢

Answer 1

就个人而言,如果您不能使用SSIS,我只会使用PowerShell:

$SQLServer = 'SQLSERVERNAME';
# If you have a non-default instance such as with SQL Express, use this format
# $SQLServer = 'SQLSERVERNAME\SQLINSTANCENAME';
$Database = 'MyDatabase';

$ConnectionString = "Data Source={0};Initial Catalog={1};Integrated Security=SSPI" -f $SQLServer, $Database;
$CommandText = @'
DECLARE @ID int;
SET @ID  = 123456;
SELECT ID, First_Name FROM dbo.Person WHERE ID = @ID;
SELECT ID, Last_Name FROM dbo.Person WHERE ID = @ID;
'@;

$SqlConnection = New-Object System.Data.SqlClient.SqlConnection;
$SqlConnection.ConnectionString = $ConnectionString;

$SqlCommand = New-Object System.Data.SqlClient.SqlCommand;
$SqlCommand.CommandText = $CommandText;
$SqlCommand.Connection = $SqlConnection;

$SqlDataAdapter = New-Object System.Data.SqlClient.SqlDataAdapter;
$SqlDataAdapter.SelectCommand = $SqlCommand;

$DataSet = New-Object System.Data.DataSet;

$SqlConnection.Open();
$SqlDataAdapter.Fill($DataSet) | Out-Null;
$SqlConnection.Close();
$SqlConnection.Dispose();

$DataSet.Tables[0] | Export-Csv -NoTypeInformation -Path 'U:\FirstNames.csv';
$DataSet.Tables[1] | Export-Csv -NoTypeInformation -Path 'U:\LastNames.csv';