借助元数据库informationschema样查询pikachu据库中member据表里所有的字段名?

A、SELECTTABLENAMEFROMinformationschema.tablesWHERETABLESCHEMA=pikachuANDTABLENAME=member
B、SELECTCOLUMNNAMEFROMinformationschema.columnsWHERETABLESCHEMA=pikachuANDTABLENAME=member
C、SELECTCOLUMNNAMEFROMinformationschema.columnsWHERETABLENAME=pikachuANDTABLESCHEMA=member
D、SELECTTABLESCHEMAFROMinformationschema.tablesWHERETABLENAME=pikachuANDTABLESCHEMA=member