Platforms to show: All Mac Windows Linux Cross-Platform
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.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 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
See also:
The items on this page are in the following plugins: MBS SQL Plugin.