old/Invoke-SQLiteTable.ps1
|
Function Invoke-SQLiteTable { <# .SYNOPSIS Bulk insert to SQLite Database .DESCRIPTION Bulk insert [System.Data.DataTable] to SQLite database using transaction. .INPUTS None. You cannot pipe objects to Invoke-SQLiteTable. .OUTPUTS Work in progress (maybe count of updates/inserts) .EXAMPLE PS C:\> Invoke-SQLiteTable [-conn] <SQLiteConnection> [-InputObject] <DataTable> [[-Name] <String>] Inserts or ignores records to database table. .EXAMPLE PS C:\> Invoke-SQLiteTable [-conn] <SQLiteConnection> [-InputObject] <DataTable> [[-Name] <String>] [[-Update] <Column>] Inserts or ignores records then updates row where -Update <Column> = Row.Value .EXAMPLE PS C:\> Invoke-SQLiteTable [-conn] <SQLiteConnection> [-InputObject] <DataTable> [[-Name] <String>] [-Replace] Inserts records or replaces row. .EXAMPLE PS C:\> Invoke-SQLiteTable [-conn] <SQLiteConnection> [-InputObject] <DataTable> [[-Name] <String>] [-WhatIf] Shows import query, runs the import but rollsback the changes so no changes are made to database. (debug) .NOTES Author: Proxx Web: www.Proxx.nl Date: 10-06-2015 .LINK http://www.proxx.nl/Wiki/Invoke-SQLiteTable/ #> [cmdletbinding()] Param( [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage='you need to associate a [System.Data.SQLite.SQLiteConnection] connection.' )][Alias('conn')][System.Data.SQLite.SQLiteConnection] $Connection = $null, [Parameter( Mandatory=$True, ValueFromPipeline=$False, HelpMessage='you need to specify a [System.Data.DataTable] to import.' )][Alias('Table')][System.Data.DataTable] $InputObject = $null ,[String] $Name = $InputObject.TableName ,[String] $Update = $null ,[Switch] $Replace ,[Switch] $Progress ,[Switch] $Whatif ) Begin { Write-Verbose -Message "Checking connection state" if ($Connection.State -ne "Open") { throw "connection is not open!"} Write-Verbose -Message "Checking if table exists" if (((Read-SQLite -Connection $Connection -Query "SELECT name FROM sqlite_master WHERE type = 'table' AND name = '$Name'").Name).Count -lt 1) { Throw "Table ($Name) not found. you need to create a table before importing the data." } $Command = $Connection.CreateCommand() Write-Verbose -Message "Starting Transaction" $Transaction = $Connection.BeginTransaction() $Columns = $InputObject.Columns.ColumnName $Names = New-Object -TypeName System.Text.StringBuilder $Params = New-Object -TypeName System.Text.StringBuilder $UpdParams = New-Object -TypeName System.Text.StringBuilder $x = $false Write-Verbose -Message "Creating command text" ForEach($Column in $Columns) { [Void]$command.Parameters.Add((New-Object -TypeName System.Data.SQLite.SQLiteParameter -ArgumentList ("@" + $Column.Replace(".","")))) if ($x) { [Void]$Names.Append(", ``" + $Column + "``") [Void]$Params.Append(", @" + $Column.Replace(".","")) [Void]$UpdParams.Append(', "' + $Column + '" = @' + $Column.Replace(".","")) } else { [Void]$Names.Append("``" + $Column + "``") [Void]$Params.Append("@" + $Column.Replace(".","")) [Void]$UpdParams.Append('"' + $Column + '" = @' + $Column.Replace(".","")) $x = $true } } if ($Replace) { $Insert = "INSERT OR REPLACE INTO " + $Name + " (" + $Names.ToString() + ") VALUES (" + $Params.ToString() + ");" } Else { $Insert = "INSERT OR IGNORE INTO " + $Name + " (" + $Names.ToString() + ") VALUES (" + $Params.ToString() + ");" } if ($Update) { $Insert += 'UPDATE "' + $Name + '" SET ' + $UpdParams.ToString() + " Where " + $Update + "=@" + $Update.Replace(".","") + ";" } $command.CommandText = $Insert if($Progress) { [int]$Total = $InputObject.Rows.Count Write-Progress -Activity "Inserting rows to table: $Name" -Status "Processing:" $Sw = [System.Diagnostics.Stopwatch]::StartNew() [int]$c = 0 } Write-Verbose -Message "Prepare Command" $command.Prepare() if ($Whatif) { $command.CommandText } Write-Verbose -Message "Importing DataTable to Sqlite" } Process { ForEach($Row in $InputObject.Rows) { ForEach($Column in $Columns) { $Value = ($Row.$Column) if ($Value.GetType().Name -eq "DateTime") { $Value = $Value.ToString("yyyy-MM-dd HH:mm:ss") } elseif ($Value.GetType().Name -eq "String") { $Value = $Value.Replace("'","''") } $command.Parameters["@" + $Column.Replace(".","")].Value = $Value } Try { [Void]$command.ExecuteNonQuery() } Catch { Write-Error -Message $_.Exception.Message; $command.CommandText } if ($Progress) { $c++; if ($Sw.ElapsedMilliseconds -gt 1000) { $Sw.Restart(); Write-Progress -Activity "Inserting rows to table: $Name" -Status "Processing: ($c/$Total)" -PercentComplete ($c/$Total*100) }} } } End { if ($Whatif) { Write-Verbose -Message "Rollback transaction"; $Transaction.Rollback() } Else { Write-Verbose -Message "Commit transaction"; $Transaction.Commit() } if ($Progress) { $Sw.Stop(); Write-Progress -Activity "Inserting rows to table: $Name" -Status "Processing:" -PercentComplete 100 -Completed } } } |