Brightsign Object Reference Manual (FW 5.1) Bedienungsanleitung PDF herunterladen (Seite 153)

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roSqliteDatabase

This is the main SQLite object that "owns" the database. You can create as many of these objects as you need.

Interfaces: ifSqliteDatabase, ifSetMessagePort

The ifSqliteDatabse interface provides the following:

• Open(path As String) As Boolean: Opens an existing database file. This method returns True upon

success.

• Create(path As String) As Boolean: Creates a new, empty database file. This method returns True upon

success.

• Close(): Closes an open database.

• CreateStatement(sql_text As String) As Object: Creates a new roSqlLiteStatement object using the

specified SQL string.

• RunBackground(sql_text As String, associative_array As Object) As Integer: Runs the

specified SQL statement in the background and binds variables using the passed roAssociativeArray.

• SetMemoryLimit(limit As Integer): Sets the "soft" memory limit under which SQLite will attempt to remain

(see the SQLite documentation for details).

Note: The SetMemoryLimit()method set global parameters. It must, therefore, be called before any other calls are

made on the database object.

• SetTempDirectory(unix_path As String): Sets the temporary directory (specified as a Unix-style path)

that SQLite should use. This method was deprecated in firmware versions 4.8.x and removed from BrightScript in

versions 5.0.x.

The ifSetMessagePort interface provides the following:

• SetPort(a As Object)

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Brightsign Object Reference Manual (FW 5.1) Bedienungsanleitung Seite 153