请帮助将 4 个 MySQL 查询合并为一个 [英] Please help merging 4 MySQL queries to One

问题描述

UPDATE RIA.Contact SET title = REPLACE(title, 'Cheif', 'Chief') where title rlike 'Cheif';
UPDATE RIA.Contact SET title = REPLACE(title, 'Manger', 'Manager') where title rlike 'Manger';
UPDATE RIA.Contact SET title = REPLACE(title, 'Manging', 'Managing') where title rlike 'Manging';
UPDATE RIA.Contact SET title = REPLACE(title, 'Excutive', 'Executive') where title rlike 'Excutive';

我们可以将上面的 4 个合并成这样的: UPDATE table SET A = IF(A > 0 AND A <1, 1, IF(A > 1 AND A < 2, 2,A)) 其中 A 不为 NULL;

Can we merge the above 4 to something like this : UPDATE table SET A = IF(A > 0 AND A < 1, 1, IF(A > 1 AND A < 2, 2, A)) WHERE A IS NOT NULL;

我知道我们可以使用过程来做到这一点，但是否可以只使用查询?

I know we can do this using a procedure but is it possible just using a query?

我试过了 -

UPDATE RIA.Contact SET title = IF(title rlike 'Cheif', replace(title,'Cheif','Chief'), IF(title rlike 'Manger', replace(title,'Manger','Manager'))) WHERE title rlike 'Cheif' or title rlike 'Manger';

不行！

推荐答案

UPDATE RIA.Contact
SET title = REPLACE(
  REPLACE(
    REPLACE(
      REPLACE(title, 'Excutive', 'Executive'),
      'Manging', 'Managing'),
    'Manger', 'Manager'),
  'Cheif', 'Chief')
WHERE title rlike 'Cheif'
   OR title rlike 'Manger'
   OR title rlike 'Manging'
   OR title rlike 'Excutive';

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