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






  1. SQL / MySQL
  2. Table Index
  3. 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;








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