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/SQL/SQLDatabaseMBS MySQL Fetch blob
Required plugins for this example: MBS SQL Plugin, MBS Images Plugin
You find this example project in your Plugins Download as a Xojo project file within the examples folder: /SQL/SQLDatabaseMBS MySQL Fetch blob
This example is the version from Fri, 4th Aug 2016.
Project "SQLDatabaseMBS MySQL Fetch blob.xojo_binary_project"
Class App Inherits Application
Const kEditClear = "&Löschen"
Const kFileQuit = "Beenden"
Const kFileQuitShortcut = ""
EventHandler Sub Open() dim db as new SQLDatabaseMBS // where is the library? // you can place the database client library files where you want. // example code just has some convenient location for testing. db.SetFileOption SQLConnectionMBS.kOptionLibraryMySQL, SpecialFolder.UserHome.Child("libmysqlclient.dylib") // connect to database // in this example it is MySQL, // but can also be Sybase, Informix, DB2, SQLServer, InterBase, Oracle, SQLite, SQLBase and ODBC db.DatabaseName="mysql:xxx,3306@test" db.UserName="xxx" db.Password="xxx" if db.Connect then // we query pictures in a pictures database dim r as RecordSet = db.SQLSelect("Select * from Pictures where Picture IS NOT NULL limit 10") // create command object // Select from our test table if r<>Nil then while not r.EOF // fetch results row by row and print results dim p as string = r.field("Picture").StringValue if lenb(p)>=0 then // as this should be PNGs, we show them dim w as new window2 w.Backdrop = PNGStringToPictureMBS(p) end if r.MoveNext wend end if else MsgBox db.ErrorMessage end if End EventHandler
End Class
Class Window1 Inherits Window
Control Listbox1 Inherits Listbox
ControlInstance Listbox1 Inherits Listbox
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
Module Module1
End Module
Class Window2 Inherits Window
End Class
End Project

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