[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAezVvlSQokk_KbMnPXc7PfGzpT_edwEyFOZTIB1s9gM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2024-11-29 23:16:44",168155397,[8,9,10,11],"DROP 函数 account(id)","删除函数 account(id INT)","DROP FUNCTION 帐户","DROP FUNCTION account(INT id)",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},39,"a152bc2c57beef09218a55146fd69774","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffb4e0e6a5574c0a2bea5a3691ff957f7.jpg","数据库原理及应用","work_39289316","测验二","假设数据库中有一个名为account的存储函数,其只有一个类型为INT的输入参数id,现欲删除该存储函数,以下语句正确的是( )",[21,32,41,44,53,62,71,80,87,95],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],168155393,[25,26,27,28],"x是全体学生选修所有课程的平均成绩","表达式AVG(grade) INTO x 有语法错误","fun没有参数","RETURNS DECIMAL指明返回值的数据类型","设有学生成绩表score(sno, cno, grade),各字段含义分别是学生学号、课程号及成绩.现有如下创建存储函数的语句:CREATE FUNCTION fun()RETURNS DECIMALBEGIN DECLARE x DECIMAL SELECT AVG(grade) INTO x FROM score RETURN xEND;以下关于上述存储函数的叙述中,错误的是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],168155395,[36,37,38,39],"SHOW CREATE FUNCTION 乐趣","DISPLAY CREATE FUNCTION 乐趣","CREATE FUNCTION 乐趣","SELECT FUNCTION 乐趣","查看存储函数fun具体内容的命令是( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],168155399,[48,49,50,51],"调用 db_association.countGroup('g100')","SELECT * FROM db_association.countGroup","SHOW 函数 db_association.countGroup","选择 db_association.countGroup('g100')","设有如下存储函数定义:DELIMITER CREATE FUNCTION countGroup(grp CHAR(10))RETURNS INTDETERMINISTICBEGIN RETURN (SELECT COUNT(*) FROM tb_gs WHERE gno=grp);结束分隔符 ;正确调用存储函数countGroup的语句是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],168155401,[57,58,59,60],"DROP FUNCTION get_time","DROP FUNCTION get_time(t)","DROP FUNCTION get_time(t TIME)","DROP FUNCTION get_time(TIME t)","假设数据库中有一个名为get_time的存储函数,其只有一个类型为TIME的输入参数t,现欲删除该存储函数,以下语句正确的是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],168155404,[66,67,68,69],"十六进制常量","时间日期常量","八进制常量","字符串常量","以下选项中,MySQL不支持的常量类型是( )",{"answer":72,"createTime":73,"id":74,"options":75,"question":40,"source":30,"type":31},[],"2024-11-29 23:16:45",168155439,[76,77,78,79],"SHOW CREATE FUNCTION fun","DISPLAY CREATE FUNCTION fun","CREATE FUNCTION fun","SELECT FUNCTION fun",{"answer":81,"createTime":73,"id":82,"options":83,"question":19,"source":30,"type":31},[],168155440,[84,85,86,11],"DROP FUNCTION account(id)","DROP FUNCTION account(id INT)","DROP FUNCTION account",{"answer":88,"createTime":73,"id":89,"options":90,"question":94,"source":30,"type":31},[],168155441,[91,49,92,93],"CALL db_association.countGroup('g100')","SHOW FUNCTION db_association.countGroup","SELECT db_association.countGroup('g100')","设有如下存储函数定义:DELIMITER CREATE FUNCTION countGroup(grp CHAR(10))RETURNS INTDETERMINISTICBEGIN RETURN (SELECT COUNT(*) FROM tb_gs WHERE gno=grp);ENDDELIMITER ;正确调用存储函数countGroup的语句是( )",{"answer":96,"createTime":97,"id":98,"options":99,"question":104,"source":30,"type":31},[],"2025-11-10 21:43:51",231561907,[100,101,102,103],"13","14","20","22","孔子周游列国长达几年?( )"]