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/SQL/SQLite Display Schema
Function:
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/SQLite Display Schema
This example is the version from Thu, 6th Apr 2016.
Project "SQLite Display Schema.rbp"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
EventHandler Sub Open() // use internal sqlite library call InternalSQLiteLibraryMBS.Use dim con as SQLConnectionMBS dim cmd as SQLCommandMBS try con = new SQLConnectionMBS // connection object cmd = new SQLCommandMBS // create command object // where is the library? 'con.Option(con.kOptionLibrarySQLite) = "/usr/lib/libsqlite3.0.dylib" // connect to database 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 con.Connect(path,"","",SQLConnectionMBS.kSQLiteClient) // associate a command with connection // connection can also be specified in SACommand constructor cmd.Connection=con // create table cmd.setCommandText("Create table if not exists test_tbl(fid integer, fvarchar20 varchar(20), fblob blob)") cmd.Execute // create table cmd.setCommandText("Create table if not exists person(age integer, name varchar(30), nickname varchar(20))") cmd.Execute // create table cmd.setCommandText("Create table if not exists zipcodes(name varchar(20), zip varchar(9))") cmd.Execute cmd.setCommandText("select * from sqlite_master") cmd.Execute dim lines(-1) as string if cmd.isResultSet then while cmd.FetchNext dim n as integer = cmd.FieldCount dim fields(-1) as string for i as integer = 1 to n fields.Append cmd.Field(i).asStringValue next lines.Append Join(fields,chr(9)) wend end if MsgBox Join(lines,EndOfLine) // commit changes on success con.Commit MsgBox("Table created, row inserted!") catch r as SQLErrorExceptionMBS // SAConnection::Rollback() // can also throw an exception // (if a network error for example), // we will be ready try // on error rollback changes if con<>nil then con.rollback end if catch x as SQLErrorExceptionMBS // ignore end try // show error message MsgBox r.message end try End EventHandler
End Class
Class Window1 Inherits Window
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

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





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