Functions/GenXdev.Data.SqlServer/Get-SQLServerTransaction.ps1
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Part of PowerShell module : GenXdev.Data.SqlServer Original cmdlet filename : Get-SQLServerTransaction.ps1 Original author : René Vaessen / GenXdev Version : 1.288.2025 ################################################################################ MIT License Copyright 2021-2025 GenXdev Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ################################################################################> ############################################################################### <# .SYNOPSIS Creates and returns a SQL Server transaction object for batch operations. .DESCRIPTION Creates a SQL Server database connection and transaction object that can be used for batch operations. The caller is responsible for committing or rolling back the transaction. Requires an existing SQL Server database and connection. .PARAMETER ConnectionString The SQL Server connection string for database access. .PARAMETER DatabaseName The name of the SQL Server database. Used with Server parameter to create connection string. .PARAMETER Server The SQL Server instance name. Defaults to 'localhost'. .PARAMETER IsolationLevel Transaction isolation level. Defaults to ReadCommitted. .PARAMETER CreateDatabaseIfNotExists Whether to create the database file if it doesn't exist. Defaults to true. .EXAMPLE $transaction = Get-SQLServerTransaction -Server "localhost" -DatabaseName "MyDatabase" try { Invoke-SQLServerQuery -Transaction $transaction -Queries "INSERT INTO Users..." Invoke-SQLServerQuery -Transaction $transaction -Queries "UPDATE Users..." $transaction.Commit() } catch { $transaction.Rollback() throw } finally { $transaction.Connection.Close() } .EXAMPLE $transaction = Get-SQLServerTransaction -ConnectionString "Server=localhost;Database=MyDB;Integrated Security=true" #> function Get-SQLServerTransaction { [CmdletBinding(DefaultParameterSetName = 'DatabaseName')] [Alias('getsqltx', 'newsqltx')] param ( ########################################################################### [Parameter( Position = 0, Mandatory, ParameterSetName = 'ConnectionString', HelpMessage = 'The connection string to the SQL Server database.' )] [string]$ConnectionString, ########################################################################### [Parameter( Position = 0, Mandatory, ParameterSetName = 'DatabaseName', HelpMessage = 'The name of the SQL Server database.' )] [ValidateNotNullOrEmpty()] [string]$DatabaseName, ########################################################################### [Parameter( Position = 1, Mandatory = $false, ParameterSetName = 'DatabaseName', HelpMessage = 'The SQL Server instance name.' )] [string]$Server = '.', ########################################################################### [Parameter( Mandatory = $false, HelpMessage = 'Transaction isolation level.' )] [ValidateSet('ReadCommitted', 'ReadUncommitted', 'RepeatableRead', 'Serializable', 'Snapshot', 'Chaos')] [string]$IsolationLevel = "ReadCommitted" ########################################################################### ) begin { # load SQL Server client assembly - prefer Microsoft.Data.SqlClient, fallback to System.Data.SqlClient try { GenXdev.Helpers\EnsureNuGetAssembly -PackageKey 'Microsoft.Data.SqlClient' $sqlClientType = 'Microsoft.Data.SqlClient' } catch { try { GenXdev.Helpers\EnsureNuGetAssembly -PackageKey 'System.Data.SqlClient' $sqlClientType = 'System.Data.SqlClient' } catch { # Fallback to built-in System.Data.SqlClient (older .NET Framework) $sqlClientType = 'System.Data.SqlClient' } } # initialize connection string from parameters if ($PSCmdlet.ParameterSetName -eq 'DatabaseName') { $connString = "Server=$Server;Database=$DatabaseName;Integrated Security=true;TrustServerCertificate=true" } else { $connString = $ConnectionString } Microsoft.PowerShell.Utility\Write-Verbose "Creating SQL Server transaction with connection string: $connString" } process { try { # establish database connection $connectionClass = "$sqlClientType.SqlConnection" $connection = Microsoft.PowerShell.Utility\New-Object $connectionClass($connString) $connection.Open() Microsoft.PowerShell.Utility\Write-Verbose 'SQL Server connection opened successfully' # begin transaction with specified isolation $transaction = $connection.BeginTransaction($IsolationLevel) Microsoft.PowerShell.Utility\Write-Verbose "Transaction started with $IsolationLevel isolation level" # return the transaction object return $transaction } catch { if ($null -ne $connection -and $connection.State -eq 'Open') { $connection.Close() } throw $_ } } end { } } |