Method

Database_Class.SQLSelect

---

Warning

This item was deprecated in version 2019r2. Please use Database.SelectSQL as a replacement.

Description

This is an SQL statement that returns a RowSet. SelectString contains the SQL statement.

Notes

Typically only SQL SELECT statements return a RecordSet, but some databases return a RowSet for SQL commands such as INSERT, UPDATE or stored procedures.

If the SQL does not return data then Nil is returned. Nil is also usually returned if there is an error in the SQL statement, but you should instead check DatabaseException to check if an error occurred.

To avoid SQL Injection, be sure to use Prepared SQL Statements.

Sample code

This code gets the names of the tables in a SQLite database using its built-in'sqlite_master' table:

Dim dbFile As FolderItem
dbFile = FolderItem.ShowOpenFileDialog("") ' Choose a SQLite DB

Dim db As New SQLiteDatabase
db.DatabaseFile = dbFile

If db.Connect Then
  Dim rs As RecordSet
  rs = db.SQLSelect("SELECT * FROM sqlite_master;")

    If db.Error Then
      MsgBox("Error: " + db.ErrorMessage)
      Return
    End If

  If rs <> Nil Then
    While Not rs.EOF
       If rs.Field("type").StringValue = "table" Then
         MsgBox("Table: " + rs.Field("name").StringValue)
       End If
       rs.MoveNext
    Wend
    rs.Close
  End If
  db.Close
Else
    If db.Error Then
      MsgBox("Error: " + db.ErrorMessage)
      Return
    End If
End If

Compatibility

All project types on all supported operating systems.