题目对人有帮助,内容完整,我也想知道答案 -1 题目没有实际价值,缺少关键内容,没有改进余地 A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 D、select * from users where b = 2 and c = 1 回答后才能看到答案和解析 收藏 编辑 举报 CodePeasant 950 5年前上传
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 lmz李 24 4年前回答
A、select * from users where a = 1 and b = 2 D、select * from users where b = 2 and c = 1 编辑 tteee 270 4年前回答
A、select * from users where a = 1 and b = 2 D、select * from users where b = 2 and c = 1 编辑 leiyuxiao 1 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 我要去面试 42 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 D、select * from users where b = 2 and c = 1 编辑 wufei 72 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 最左侧匹配原则, a,b,c a,b a,c 只用到a 按顺序,不能有运算,函数,表达式,且like只能是前缀匹配,order 多字段排序,需要升降级一致 编辑 aftersun 3313 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 D、select * from users where b = 2 and c = 1 编辑 fuqisngs 18 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 杨威利de红茶 11 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 D、select * from users where b = 2 and c = 1 编辑 ithuan 1 4年前回答
A、select * from users where a = 1 and b = 2 C、select * from users where a = 2 and c = 1 编辑 flame.stzhang 16 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 最左前缀匹配 编辑 Bailiff 12 4年前回答
A、select * from users where a = 1 and b = 2 D、select * from users where b = 2 and c = 1 编辑 朝来寒雨晚来风 519 4年前回答
A、select * from users where a = 1 and b = 2 C、select * from users where a = 2 and c = 1 编辑 fed126 34 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 lzq603 1 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 编辑 cffirm 7 4年前回答
A、select * from users where a = 1 and b = 2 C、select * from users where a = 2 and c = 1 编辑 Adamlet 32 4年前回答
A、select * from users where a = 1 and b = 2 C、select * from users where a = 2 and c = 1 编辑 薇尔莉特·伊芙加登是小天使 17 4年前回答
A、select * from users where a = 1 and b = 2 D、select * from users where b = 2 and c = 1 编辑 yuye 902 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 编辑 yinshi 8 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 zerovszero 106 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 蛋蛋CC 1353 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 编辑 lampyou 30 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 范德萨发 1 4年前回答
A、select * from users where a = 1 and b = 2 D、select * from users where b = 2 and c = 1 编辑 沐兰天姿 48 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 编辑 liheheh 1 4年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 C、select * from users where a = 2 and c = 1 编辑 novayoung 29 3年前回答
A、select * from users where a = 1 and b = 2 D、select * from users where b = 2 and c = 1 编辑 待烟火清凉 812 3年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 mihx 68 3年前回答
A、select * from users where a = 1 and b = 2 B、select * from users where b = 2 and a = 1 编辑 dwaff 1 2年前回答