在SQL server中and和or的执行顺序是什么?select *from productswhere unitprice>16 and productid=16 or productname like 'T%'select *from productswhere unitprice>16 and productname like 'T%' or productid=16恳请专家说一下这两个语句执
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![在SQL server中and和or的执行顺序是什么?select *from productswhere unitprice>16 and productid=16 or productname like 'T%'select *from productswhere unitprice>16 and productname like 'T%' or productid=16恳请专家说一下这两个语句执](/uploads/image/z/14715079-7-9.jpg?t=%E5%9C%A8SQL+server%E4%B8%ADand%E5%92%8Cor%E7%9A%84%E6%89%A7%E8%A1%8C%E9%A1%BA%E5%BA%8F%E6%98%AF%E4%BB%80%E4%B9%88%3Fselect+%2Afrom+productswhere+unitprice%3E16+and+productid%3D16+or+productname+like+%27T%25%27select+%2Afrom+productswhere+unitprice%3E16+and+productname+like+%27T%25%27+or+productid%3D16%E6%81%B3%E8%AF%B7%E4%B8%93%E5%AE%B6%E8%AF%B4%E4%B8%80%E4%B8%8B%E8%BF%99%E4%B8%A4%E4%B8%AA%E8%AF%AD%E5%8F%A5%E6%89%A7)
在SQL server中and和or的执行顺序是什么?select *from productswhere unitprice>16 and productid=16 or productname like 'T%'select *from productswhere unitprice>16 and productname like 'T%' or productid=16恳请专家说一下这两个语句执
在SQL server中and和or的执行顺序是什么?
select *
from products
where unitprice>16 and productid=16 or productname like 'T%'
select *
from products
where unitprice>16 and productname like 'T%' or productid=16
恳请专家说一下这两个语句执行过程有什么不一样?
在SQL server中and和or的执行顺序是什么?select *from productswhere unitprice>16 and productid=16 or productname like 'T%'select *from productswhere unitprice>16 and productname like 'T%' or productid=16恳请专家说一下这两个语句执
第一个查询单价大于16且产品编号是16的,或产品名称以T开头的产品.
第二个是查询单价大于16且产品名称以T开头 或者产品编号是16的.
and优先级高于or,一般这种表达式可以用()括起来,