更新数据库包含字母的字段值

Posted 2022-11-09 ym296900664

update HR_Employees
set fregno=substring(replace(FEmpCode,'F',1),3,7)
where (fregno='' or fregno=null) and  patindex('%F%',FEmpCode)>0


update HR_Employees
set fregno=substring(replace(FEmpCode,'M',2),3,7)
where (fregno='' or fregno=null) and  patindex('%M%',fempcode)>0


-- patindex('%F%',FEmpCode)>0
-- charindex('%F%',FEmpCode)>0
-- FEmpCode like '%F%'