{"id":237767,"date":"2024-07-06T04:26:44","date_gmt":"2024-07-06T04:26:44","guid":{"rendered":"https:\/\/namso-gen.co\/blog\/?p=237767"},"modified":"2024-07-06T04:26:44","modified_gmt":"2024-07-06T04:26:44","slug":"how-to-add-a-default-value-in-sql-column","status":"publish","type":"post","link":"https:\/\/namso-gen.co\/blog\/how-to-add-a-default-value-in-sql-column\/","title":{"rendered":"How to add a default value in SQL column?"},"content":{"rendered":"

Adding a default value to a column in a SQL table is a common requirement when designing databases. It can help ensure that new rows automatically have a specific value in a column if one is not provided during the insertion process. Here is how you can add a default value in an SQL column:<\/p>\n

**To add a default value in an SQL column, you can use the DEFAULT constraint in your CREATE TABLE or ALTER TABLE statement.**<\/p>\n

Let’s consider an example to illustrate this:<\/p>\n

Suppose you have a table called “employees” with columns for “employee_id”, “employee_name”, and “department”. You want to add a default value of “HR” for the “department” column when a new employee is added to the table.<\/p>\n

Here is how you can achieve this:<\/p>\n

“`sql
\nCREATE TABLE employees (
\n employee_id INT,
\n employee_name VARCHAR(50),
\n department VARCHAR(50) DEFAULT ‘HR’
\n);
\n“`<\/p>\n

In this example, the DEFAULT ‘HR’ statement sets the default value of “HR” for the “department” column. This means that if you insert a new row without specifying a value for the “department” column, it will automatically default to “HR”.<\/p>\n

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