jodd-db/src/main/java/jodd/db/DbQuery.java
public Q setNull(final int index, final int type) {
		initPrepared();
		try {
			preparedStatement.setNull(index, type);
		} catch (SQLException sex) {
			throw new DbSqlException(this, "Failed to set null to parameter: " + index, sex);
		}
		return _this();
	}
public Q setNull(final int index, final int type) {
		initPrepared();
		try {
			preparedStatement.setNull(index, type);
		} catch (SQLException sex) {
			throw new DbSqlException(this, "Failed to set null to parameter: " + index, sex);
		}
		return _this();
	}
public Q setNull ( final int index , final int type ) { initPrepared ( ) ; try { preparedStatement . setNull ( index , type ) ; } catch ( SQLException sex ) { throw new DbSqlException ( this , "Failed to set null to parameter: " + index , sex ) ; } return _this ( ) ; }
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