mysql 拼接字符串,和刪除某個字段找中的 某個字符串

 基礎數據:

  

拼接:concat()

 ##拼接字符串
update z_test set test = CONCAT("前面添加字符串",test,"中間添加字符串",test,"後面添加字符串") where id = 1;

結果:

  刪除或者替換:replace()

##過濾(刪除)字符串
update z_test set test = REPLACE(test,"BB","") where id = 2

結果:

##替換字符串
update z_test set test = REPLACE(test,"CC","66666") where id = 3

結果: