{"id":11456,"date":"2024-03-14T14:08:37","date_gmt":"2024-03-14T14:08:37","guid":{"rendered":"https:\/\/www.silicloud.com\/blog\/how-can-default-values-be-set-for-sql-server-fields\/"},"modified":"2025-08-04T12:08:49","modified_gmt":"2025-08-04T12:08:49","slug":"how-can-default-values-be-set-for-sql-server-fields","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/blog\/how-can-default-values-be-set-for-sql-server-fields\/","title":{"rendered":"SQL Server Default Values: Complete Guide"},"content":{"rendered":"<p>In SQL Server, you can use the DEFAULT constraint to set default values. Here are the steps to set default values:<\/p>\n<p>When creating a table, you can use the DEFAULT keyword in the field definition to set a default value. For example:<\/p>\n<pre class=\"post-pre\"><code class=\"lang-sql\">CREATE TABLE Employees (\r\n    ID INT PRIMARY KEY,\r\n    Name VARCHAR(50),\r\n    Age INT DEFAULT 30\r\n);\r\n<\/code><\/pre>\n<p>In the example above, the default value for the field &#8220;Age&#8221; is set to 30.<\/p>\n<p>If you need to add a default value to an existing table, you can use the ALTER TABLE statement to add a DEFAULT constraint. For example:<\/p>\n<pre class=\"post-pre\"><code class=\"lang-sql\">ALTER TABLE Employees\r\nADD CONSTRAINT DF_Employees_Age DEFAULT 30 FOR Age;\r\n<\/code><\/pre>\n<p>In the example above, the default value for the field &#8220;Age&#8221; is set to 30.<\/p>\n<p>To change an existing default value, you can use the ALTER TABLE statement to modify the existing DEFAULT constraint. For example:<\/p>\n<pre class=\"post-pre\"><code class=\"lang-sql\">ALTER TABLE Employees\r\nADD CONSTRAINT DF_Employees_Age DEFAULT 40 FOR Age;\r\n<\/code><\/pre>\n<p>In the example above, the default value of the field &#8220;Age&#8221; has been changed to 40.<\/p>\n<p>By using the above methods, you can set and modify default values for fields in SQL Server.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In SQL Server, you can use the DEFAULT constraint to set default values. Here are the steps to set default values: When creating a table, you can use the DEFAULT keyword in the field definition to set a default value. For example: CREATE TABLE Employees ( ID INT PRIMARY KEY, Name VARCHAR(50), Age INT DEFAULT [&hellip;]<\/p>\n","protected":false},"author":14,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_import_markdown_pro_load_document_selector":0,"_import_markdown_pro_submit_text_textarea":"","footnotes":""},"categories":[1],"tags":[513,14794,14795,572,1353],"class_list":["post-11456","post","type-post","status-publish","format-standard","hentry","category-uncategorized","tag-database-management","tag-default-values","tag-sql-default-constraint","tag-sql-server","tag-table-design"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>SQL Server Default Values: Complete Guide - Blog - Silicon Cloud<\/title>\n<meta name=\"description\" content=\"Learn how to set default values for SQL Server fields using DEFAULT constraint. 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