MySQL batch update data

The following sql It can be used to batch modify the data of two tables or the same table ：

UPDATE table1 t1 INNER JOIN table2 t2 // t1 For the target table ,t2 For data source table 
    ON  t1.name = t2.name // on The following is the connection condition of the two tables , Multiple conditions can be followed and、or etc. 
    SET t1.sex = t2.sex, // set The columns that need to be updated , Here is about t2 Tabular sex Update to t1 Tabular sex
        t1.age= t2.age //  Multiple columns can be updated at the same time , Separated by commas 
    WHERE t1.id > 1000 AND t1.id < 2000 // where The following is the scope to be updated 

It is recommended to operate in the test library first when updating in batches , It is strictly forbidden to operate directly in the production environment , Do a good job of data backup , Keep in mind that ！ Keep in mind that ！！！