How to add the new column in existing table to our desired location?

How to add the new column in existing table to our desired location?

For example, I have to add the new column 'course' before the salary column in the emp table.

I think the best way is to add the column at the end of the table and create a new view with the order of the columns...

Another option...

places the data into a temporary table and recreate the table with the correct order of the columns, and then insert data to the table from the temporary table

Refer

Add column (from table) in the desired position

Example:

CREATE TABLE temp_my_user LIKE)

SELECT * FROM password);

DROP TABLE password;

(Password) CREATE TABLE

userID NUMBER

, first name VARCAHR2 (25)

, middleInitial VARCHAR2 (1)

(, name VARCHAR2 (25));

INSERT INTO password (userID, firstName, lastName)

(SELECT username

first name

lastName

OF temp_my_user);

DROP TABLE temp_user;

Tags: Database

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