Sql default

Set default column value sql

Name Varchar(255) default "Fred"

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 Points

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 NULL

-1

Source: stackoverflow.com

Similar codes

0 vote114 views1 answer
Postgres 11 add primary key
SQL
2 votes119 views1 answer
Use cases condition in sql query laravel
SQL
16 votes104 views6 answers
Insert sql
SQL
0 vote105 views1 answer
Sql DATE = GETDATE()
SQL
0 vote99 views1 answer
SQL > Manipulação de Tabelas > Constraint
SQL
1 vote111 views2 answers
How to check if sql query is correct online
SQL
0 vote125 views1 answer
Sql cmd no truncate
SQL
6 votes105 views2 answers
Return columns from table sql
SQL
0 vote110 views1 answer
Select last N rows mysql
SQL
0 vote145 views1 answer
Postgresql alter table sequence
SQL