Example: /SQL/SQLDatabaseMBS SQLite ExecuteSQL with Workers

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/SQL/SQLDatabaseMBS SQLite ExecuteSQL with Workers


Required plugins for this example: MBS SQL Plugin

You find this example project in your Plugins Download as a Xojo project file within the examples folder: /SQL/SQLDatabaseMBS SQLite ExecuteSQL with Workers

This example is the version from Mon, 6th Nov 2022.

Project "SQLDatabaseMBS SQLite ExecuteSQL with Workers.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
EventHandler Sub Open() // use internal sqlite library call InternalSQLiteLibraryMBS.Use dim db as new SQLDatabaseMBS // where is the library? 'db.Option(SQLConnectionMBS.kOptionLibrarySQLite) = "/usr/lib/libsqlite3.0.dylib" // connect to database // in this example it is SQLite, // but can also be Sybase, Oracle, Informix, DB2, SQLServer, InterBase, MySQL, SQLBase and ODBC dim path as string If TargetMacOS Then path = "/tmp/test.db" // put the database in the temporary folder else path = "test.db" // for Windows and Linux in the current folder the application is inside. end if db.DatabaseName = "sqlite:"+path db.RaiseExceptions = true if db.Connect then MsgBox "We are connected!" Try // create table db.SQLExecute "Create table test_tbl(fid integer, fvarchar20 varchar(20), fblob blob)" MessageBox "Table created." Catch r As SQLErrorExceptionMBS MessageBox r.message end try end if End EventHandler
End Class
Class Window1 Inherits Window
Control CheckButton Inherits PushButton
ControlInstance CheckButton Inherits PushButton
EventHandler Sub Action() // check how many records we have Dim db As New SQLDatabaseMBS Dim path As String If TargetMacOS Then path = "/tmp/test.db" // put the database in the temporary folder Else path = "test.db" // for Windows and Linux in the current folder the application is inside. End If db.DatabaseName = "sqlite:"+path db.RaiseExceptions = True If db.Connect Then Dim r As RecordSet = db.SQLSelect("select count(*) from test_tbl") MessageBox r.IdxField(1).StringValue+" records" End If End EventHandler
End Control
Control RunButton Inherits PushButton
ControlInstance RunButton Inherits PushButton
EventHandler Sub Action() worker1.start End EventHandler
End Control
End Class
MenuBar MenuBar1
MenuItem FileMenu = "&Ablage"
MenuItem FileQuit = "#App.kFileQuit"
MenuItem EditMenu = "&Bearbeiten"
MenuItem EditUndo = "&Rückgängig"
MenuItem UntitledMenu1 = "-"
MenuItem EditCut = "&Ausschneiden"
MenuItem EditCopy = "&Kopieren"
MenuItem EditPaste = "&Einfügen"
MenuItem EditClear = "#App.kEditClear"
MenuItem UntitledMenu0 = "-"
MenuItem EditSelectAll = "&Alles auswählen"
End MenuBar
End Project

See also:

The items on this page are in the following plugins: MBS SQL Plugin.


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