default number in sql
//Sql Server
//Add a table
ALTER TABLE clients ADD Points INT DEFAULT 0
//Edit an existing table
ALTER TABLE clients ADD CONSTRAINT points DEFAULT 0 FOR Pointsdefault number in sql
//Sql Server
//Add a table
ALTER TABLE clients ADD Points INT DEFAULT 0
//Edit an existing table
ALTER TABLE clients ADD CONSTRAINT points DEFAULT 0 FOR Pointsdefault constraint in ms sql
/*Alter an existing column to add a default constraint*/
ALTER TABLE (Table_Name)
ADD CONSTRAINT (Constraint_Name)
DEFAULT (Default_Value) FOR (Existing_Column_Name)sql default
Sets a default value for a column;
Example 1 (MySQL): Creates a new table called Products which has a
name column with a default value of ‘Placeholder Name’ and an available_
from column with a default value of today’s date.
CREATE TABLE products (
id int,
name varchar(255) DEFAULT 'Placeholder Name',
available_from date DEFAULT GETDATE()
);
Example 2 (MySQL): The same as above, but editing an existing table.
ALTER TABLE products
ALTER name SET DEFAULT 'Placeholder Name',
ALTER available_from SET DEFAULT GETDATE();add column alter table default value
ALTER TABLE PERSON
ADD IS_ACTIVE VARCHAR2(1) DEFAULT 'N' NOT NULLdefault constraint in ms sql
/*Adding a New Column, with default value to an existing table*/
ALTER TABLE (Table_Name)
ADD (Column_Name)(Data_Type) (Null/NOT NULL)
CONSTRAINT (Constraint_Name) DEFAULT (Default_Value)Copyright © 2021 Codeinu
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