Provides an interface for provider-specific creation of SQL queries. More...

Public Member Functions
virtual	~QgsProviderSqlQueryBuilder ()

virtual QString	createLimitQueryForTable (const QString &schema, const QString &name, int limit=10) const
	Returns a result size limited SQL query string generated for the given schema and table name, retrieving all columns for the first limit rows. More...

virtual QString	quoteIdentifier (const QString &identifier) const
	Returns a properly quoted version of a table/schema identifier. More...

Detailed Description

Provides an interface for provider-specific creation of SQL queries.

The QgsProviderSqlQueryBuilder provides an interface for creation of SQL queries, which can be overridden for backend provider specific SQL syntax.

Constructor & Destructor Documentation

QgsProviderSqlQueryBuilder::~QgsProviderSqlQueryBuilder ( )

virtualdefault

QString QgsProviderSqlQueryBuilder::createLimitQueryForTable	(	const QString &	schema,
		const QString &	name,
		int	limit = `10`
	)		const

virtual

Returns a result size limited SQL query string generated for the given schema and table name, retrieving all columns for the first limit rows.

The base class method returns the SQL query "SELECT * FROM table LIMIT 10". Subclasses may return database specific equivalents to this query.

QString QgsProviderSqlQueryBuilder::quoteIdentifier ( const QString & identifier ) const

virtual

Returns a properly quoted version of a table/schema identifier.

The documentation for this class was generated from the following files: