Type	Topic	Plugin	Version	macOS	Windows	Linux	iOS	Targets
class	SQL	MBS SQL Plugin	9.3	✅ Yes	✅ Yes	✅ Yes	✅ Yes	All

Function: The database class for the SQL plugin
Example: Notes:
You can use the SQL plugin without using Xojo built in database classes if you use the SQLConnectionMBS and SQLCommandMBS classes.

Or you use the SQLDatabaseMBS class which is a subclass of the database class and can be used with Xojo's RecordSet class. The current implementation is not complete. You can connect with passing the database URL in the DatabaseName property of the SQLDatabaseMBS class. You prefix this URL with the database type you are using.

You can use Execute and Select to run SQL statements. Errors can be queries with the lasterror properties. For the RecordSet, you can get the column count, the column names and values and move to the next row. All the other methods like deleting a record or updating a value are not implemented and you need to use SQL commands to do this.

Supported databases: CubeSQL, Centura SQLBase, DB2, DuckDB, Firebird, Informix, InterBase, MariaDB, Microsoft Access, Microsoft SQL Server, MySQL, ODBC, Oracle Database Server, PostgreSQL, SQL Anywhere, SQLite, SQLCipher and Sybase.
Connect to Microsoft Access, FileMaker Server (or Pro), Microsoft Visual FoxPro and others via ODBC.

As field and table schema functions are not implemented, you can't use this database with the database browser features in the Xojo IDE.
The plugin does not provide RecordCount on RecordSet class. For that you need to make a extra SELECT count(*) query.

With Xojo 2013r1, you only need a database server license from Xojo, Inc. if you use the SQLDatabaseMBS class. The SQLConnectionMBS class does not require this license. But some features like getting a recordset do need the license as they refer to the SQLDatabaseMBS class.

Please free all RecordSets and SQLCommand objects before you close the SQLConnection or the SQLDatabase. The plugin keeps references from RecordSets and SQLCommand to prevent automatic destruction of the database connection. If you close a database connection while you have RecordSets and SQLCommand in use, things may go wrong.

The plugin can cache the recordset locally. To enable you can call SQLCommandMBS.Cache or use the Option("AutoCache") = "true" on either command or connection or database objects. The plugin will than fetch all records and store them in memory. After this you can walk over the recordset and use FetchPos, FetchFirst, FetchLast, FetchPrev and FetchNext to locate the rows you need. When you call Field() you always get last row, but to read from cached result set, please use Value() function. When using RecordSet, the values are read via Value() functions automatically.

You can use InternalPostgreSQLLibraryMBS or InternalSQLiteLibraryMBS if you like to use our built in SQLite or PostgreSQL database libraries.

The class pings the database every minute by checking whether it's alive and to avoid server dropping connection. This can be disabled by setting Option("Ping") = "false". Ping is not used for SQLite.

MBS Plugin 21.1 adds support for Edit/Update methods in RecordSet and RowSet classes.

MBS Database connections are implemented via SQLConnectionMBS and SQLCommandMBS classes. We provide a thin layer on top with SQLDatabaseMBS class to make it compatible to the Xojo database class. And when you use SQLDatabaseMBS, you can always get the matching SQLConnectionMBS objet via Connection property. Instead of SQLCommandMBS class, you may just use SelectSQL/ExecuteSQL or older SQLSelect/SQLExecute functions.

We have a collection of library files here:
https://www.monkeybreadsoftware.de/xojo/download/plugin/Libs/
Subclass of the Database class.