diff --git a/实验七 b/实验七 new file mode 100644 index 0000000..cf9e2c3 --- /dev/null +++ b/实验七 @@ -0,0 +1,21 @@ +#实验7 +#1. +select * from bmxx; + +#2. +select now(); + +#3. +select * from spxx where Sslb='文具' and Jg>=80 and Jg<=100; + +#4. +select * from spxx where Sslb='电器' and (Jg<=100 or Jg>=200); + +#5. +select * from ygxx where Name like '刘%' and ssbmbh != '1001'; + +#6. +select * from ygxx where Name like '张%' and Sfzh is not null; + +#7. +select Sslb,sum(sl) from spxx group by Sslb having sum(sl)>12;