【单选题】有如下存储过程: DELIMITER // CREATE PROCEDURE CountProc1(IN s_genderVARCHAR(50),OUT num INT) BEGIN SELECT COUNT(*) INTO num FROM student WHEREgender = s_gender; END // DELIMITER ; 下面选项中,能对上述存储过程实现正确调用的是
【简答题】设有如下存储过程: DELIMITER $$ CREATE PROCEDURE sp_query(IN no CHAR(10),OUTp INT) BEGIN SELECT rprice INTO p FROM tb_room WHERE rmo=no; END $$ 以下能够正确调用该存储过程的语句是()。A. CALL sp_query('r100',@p); B. CALL sp_quer...