Howtoremoveauto_incrementfromcolumninmysql_MySQL
来源：才安养生
Alter table table_name DROP PRIMARY KEY,
change column_name column_name datatype(length) definition
Consider the example:
The structure of table1 in database new look like this:
Now we are going to remove auto increment from column 'No' in mysql table 'table1'. The mysql query is:
