![\"\"](\"https:\/\/www.wikitechy.com\/interview-questions\/wp-content\/uploads\/2022\/09\/default-constraint-sql.png\")
<\/p>\n
Syntax for setting a default constraint. Start by\u00a0 creating a new table and adding a default constraint to one of its columns.<\/p>\n
<\/div>
create table stu1(s_id int, s_name varchar(20), s_marks int default 50)<\/code><\/pre> <\/div>\n","protected":false},"excerpt":{"rendered":"Constraints are a certain set of rules used for processing data and limiting the type of data that can go into the table. The default constraint is used to define a default value for a column so that the default value will be added to all new records if no other value is specified. For […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"passster_activate_protection":false,"passster_protect_child_pages":"","passster_protection_type":"password","passster_password":"","passster_activate_overwrite_defaults":"","passster_headline":"","passster_instruction":"","passster_placeholder":"","passster_button":"","passster_id":"","passster_activate_misc_settings":"","passster_redirect_url":"","passster_hide":"no","passster_area_shortcode":"","gtb_hide_title":false,"gtb_wrap_title":false,"gtb_class_title":"","gtb_remove_headerfooter":false,"footnotes":""},"categories":[6547],"tags":[18619,18618,18623,18624,18621,18620,18616,18622,18614,18625,18613,18615,18617],"class_list":["post-4860","post","type-post","status-publish","format-standard","hentry","category-sql","tag-add-default-constraint-in-sql","tag-check-constraint-in-sql","tag-default-constraint-in-mysql","tag-default-constraint-in-oracle","tag-default-in-sql","tag-drop-default-constraint-in-sql","tag-how-to-use-default-in-sql","tag-index-constraint-in-sql","tag-mysql-default-constraint","tag-set-default-value-in-sql-select-query","tag-sql-default-constraint","tag-sql-default-constraint-with-examples","tag-what-is-default-constraint-in-sql"],"yoast_head":"\n
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