Altering and Dropping Tables : Alter Table « Table Index « SQL / MySQL

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SQL / MySQL » Table Index » Alter Table

Altering and Dropping Tables






Drop table Stock;



CREATE TABLE Stock

(

   ID SMALLINT

);



Describe Stock;



ALTER TABLE Stock

ADD COLUMN Quantity SMALLINT UNSIGNED NOT NULL,

MODIFY ID SMALLINT UNSIGNED NOT NULL,

ADD PRIMARY KEY (ID);



Describe Stock;



ALTER TABLE Stock

DROP COLUMN Quantity,

DROP PRIMARY KEY;



Describe Stock;

Related examples in the same category

1.	Altering Database Tables: Add a Column
2.	Altering Database Tables: Add More Columns
3.	Altering Database Tables: Drop a Column
4.	Altering Database Tables: Drop Unique Constraint and Add Primary Key
5.	Alter table: add unique
6.	Alter table: drop primary and foreign key
7.	Alter table: add primary key, foreign key and add column

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