public IStatement Execute() { IParser parser = null; if (_tokenizer.TokenEquals(Constants.Table)) parser = new CreateTableStatementParser(_tokenizer); if (_tokenizer.TokenEquals(Constants.View)) parser = new CreateViewStatementParser(_tokenizer); //if ( _tokenizer.TokenEquals( Constants.Procedure ) ) // parser = new CreateProcedureStatementParser( _tokenizer ); //if ( _tokenizer.TokenEquals( Constants.Trigger ) ) // parser = new CreateTriggerStatementParser( _tokenizer ); if (_tokenizer.IsNextToken( Constants.Unique, Constants.Clustered, Constants.NonClustered, Constants.Index ) ) parser = new CreateIndexParser(_tokenizer); return parser != null ? parser.Execute() : null; }
public IStatement Execute() { IParser parser = null; if ( _tokenizer.TokenEquals( Constants.Table ) ) parser = new AlterTableStatementParser( _tokenizer ); if (_tokenizer.TokenEquals(Constants.View)) parser = new CreateViewStatementParser(_tokenizer) { IsAlter = true }; //if ( _tokenizer.TokenEquals( Constants.Procedure ) ) // parser = new AlterProcedureStatementParser( _tokenizer ); //if ( _tokenizer.TokenEquals( Constants.Trigger ) ) // parser = new AlterTriggerStatementParser( _tokenizer ); return parser != null ? parser.Execute() : null; }