我的法典是:
select ename from emp where ename =ll%;
问题在于,在30个省或其经理的所有有2名雇员的姓名中,有7782名。
我尝试了我的法典,但正给我留下错误,我对我的考验是不切实际的。
我的法典是:
select ename from emp where ename =ll%;
问题在于,在30个省或其经理的所有有2名雇员的姓名中,有7782名。
我尝试了我的法典,但正给我留下错误,我对我的考验是不切实际的。
贵方希望使用诸如指挥和沙子等的野心:
select ename from emp where ename like %ll%
你们是否指的是“两条象ello子”或“两条类似 la子”? 如果是第二,这项工作可以:
SELECT
ename FROM emp
WHERE
ename LIKE %l%l%
AND
(department = 30 AND manager = 7782)
如果是,将<代码>LIKE改为%ll%
。
如果department
and manager
areCHAR/VARCHAR
und 数,则你也需要在上面作单一报价。
Select * from emp
Where instr(ename, l , 2, 2)>1 and
(Department=30 or manager=7782);
在这里,我从第二位职位开始寻找工作效率。 页: 1 其中2例是关于第2条的问题。
SELECT ename
FROM emp
WHERE (ename LIKE %l%l%
OR ename LIKE %ll% )
AND (department = 30 AND manager = 7782) ;
SELECT ename FROM emp
WHERE instr(ename, L ,1,2)>1 AND department =30 AND manager = 7782
为此:
SELECT *
FROM EMP
WHERE LENGTH(ENAME)-LENGTH(REPLACE(ENAME, L ))>=2;
它将开展工作。
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