使用jdbc重命名sql中的列

Question

I created a table (using NetBeans I went to Databases, into jdbc, into app and created a table). I am 80% sure this is a SQL table but I could be wrong.

I named one of my columns as secretQuestion but now I need to change it to securityQuestion.

I looked online and found the following:

ALTER table app.mytable CHANGE secretQuestion to securityQuestion;
ALTER table app.mytable RENAME secretQuestion to securityQuestion varchar (100);

neither CHANGE nor RENAME are recognized.

I am a slow-witted newbie so be very specific in your answer so that I can follow along!

I am using Derby!

Answer 1

See here .

RENAME COLUMN statement

Syntax

RENAME COLUMN table-Name.simple-Column-Name TO simple-Column-Name

Examples

To rename the manager column in table employee to supervisor, use the following syntax:

RENAME COLUMN EMPLOYEE.MANAGER TO SUPERVISOR

Answer 2

i have one syntax please remove 'to' keyword. it worked for me. Be sure about the table name and old column name

ALTER TABLE tablename CHANGE name newname DATATYPE;