PowerADO.NET.psm1
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# Copyright 2017 Tobias Heilig # # Redistribution and use in source and binary forms, with or without modification, are # permitted provided that the following conditions are met: # # 1. Redistributions of source code must retain the above copyright notice, this list # of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright notice, this list # of conditions and the following disclaimer in the documentation and/or other materials # provided with the distribution. # 3. Neither the name of the copyright holder nor the names of its contributors may be used # to endorse or promote products derived from this software without specific prior written # permission. # # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY # AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR # CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER # IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT # OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. <# .SYNOPSIS Queries a database. .DESCRIPTION Executes SQL queries against a database using ADO.NET. .PARAMETER Query SQL query to execute. .PARAMETER Provider ADO.NET Dataprovider to use. .PARAMETER ConnectionString Connection string for the database to be queried. .EXAMPLE Select all columns from the Customers table. PS C:\> 'SELECT * FROM Customers' | Invoke-SqlQuery -Provider OleDb -ConnectionString 'Provider=Microsoft.ACE.OLEDB.12.0;Data Source=.\db1.accdb' .EXAMPLE First insert a row into the Customers table and select afterwards. PS C:\> $query = "INSERT INTO Customers VALUES ('Doe','John');SELECT * FROM Customers WHERE Surname='John'" PS C:\> $query | Invoke-SqlQuery -Provider Sql -ConnectionString 'Server=db1.contoso.com;Database=CustomersDb;User Id=Admin;Password=pwd' .EXAMPLE Alternative syntax to the example before. PS C:\> $query1 = "INSERT INTO Customers VALUES ('Doe','John')" PS C:\> $query2 = "SELECT * FROM Customers WHERE Surname='John'" PS C:\> $query1, query2 | query Sql 'Server=db1.contoso.com;Database=CustomersDb;User Id=Admin;Password=pwd' #> function Invoke-SqlQuery { [CmdletBinding()] param ( [Parameter(Mandatory=$true, ValueFromPipeline=$true)] [String] $Query, [Parameter(Mandatory=$true, Position=0)] [ValidateSet('Sql', 'OleDb', 'Odbc', 'Oracle', 'Entity', 'SqlCe')] [String] $Provider, [Parameter(Mandatory=$true, Position=1)] [String] $ConnectionString ) begin { $connection, $command = switch ($Provider) { 'Sql' { New-Object System.Data.SqlClient.SqlConnection $ConnectionString New-Object System.Data.SqlClient.SqlCommand } 'OleDb' { New-Object System.Data.OleDb.OleDbConnection $ConnectionString New-Object System.Data.OleDb.OleDbCommand } 'Odbc' { New-Object System.Data.Odbc.OdbcConnection $ConnectionString New-Object System.Data.Odbc.OdbcCommand } 'Oracle' { New-Object System.Data.OracleClient.OracleConnection $ConnectionString New-Object System.Data.OracleClient.OracleCommand } 'Entity' { New-Object System.Data.EntityClient.EntityConnection $ConnectionString New-Object System.Data.EntityClient.EntityCommand } 'SqlCe' { New-Object System.Data.SqlServerCe.SqlCeConnection $ConnectionString New-Object System.Data.SqlServerCe.SqlCeCommand } } $connection.Open() $command.Connection = $connection } process { $_ -split ';' | % { if (-not [String]::IsNullOrWhiteSpace($_)) { $command.CommandText = $_.Trim() if ($command.CommandText -like 'SELECT*') { $reader = $command.ExecuteReader() while ($reader.Read()) { $row = [ordered]@{} 0..($reader.FieldCount - 1) | % {$row.Add($reader.GetName($_) , $reader[$_])} New-Object PSObject -Property $row } $reader.Close() } else { $affectedRows = $command.ExecuteNonQuery() Write-Verbose "$affectedRows row(s) affected by $(($command.CommandText -split '\s+')[0]) command" } } } } end { $connection.Close() } } New-Alias -Name query -Value Invoke-SqlQuery |