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显示有2L s的员工姓名
原标题:Display Employees Names Who Have 2L s, SQL Query
  • 时间:2011-10-12 02:36:21
  •  标签:
  • sql

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。

问题回答

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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