how to add default constraint in mysql
ALTER TABLE "name_table" ALTER "name_column"
SET DEFAULT value_default;how to add default constraint in mysql
ALTER TABLE "name_table" ALTER "name_column"
SET DEFAULT value_default;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 Pointssql 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();sql server create table column default value constraint name
CREATE TABLE dbo.doc_exz (
column_a INT,
column_b INT CONSTRAINT DF_Doc_Exz_Column_B DEFAULT 50);Copyright © 2021 Codeinu
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