How to modify mysql database table?

How to modify the mysql database table: Use the “ALTER TABLE” statement to change the structure of the original table, such as adding or deleting fields, modifying the original field data type, renaming the field or table, modifying Table character set, etc.; syntax “ALTER TABLE [modify options]”. The premise of modifying the data table is that the table already exists in the database. Modifying a table refers to modifying the structure of an existing data table in the database. The operation of modifying the data table is also indispensable in database management. Just like drawing a sketch, you can use an eraser to erase too much drawing, and add it with a pen if you have less drawing. If you don’t know how to modify the data table, it is equivalent to throwing away and redrawing as long as you make a mistake, which increases unnecessary costs. In MySQL, you can use the ALTER TABLE statement to change the structure of the original table, such as adding or deleting columns, changing the original column type, renaming columns or tables, etc. The syntax format is as follows: ALTER TABLE [modify option] modify option The syntax format is as follows: { ADD…