edkuksa/SQL-Tutorials
1
0
Fork 0
mirror of https://github.com/gowthamrajk/SQL-Tutorials.git synced 2026-04-30 22:13:56 +07:00
Code Issues Packages Projects Releases Wiki Activity

Update README.md

Browse Source
This commit is contained in:
GowthamRaj K
2021-07-27 19:24:48 +05:30
committed by GitHub
parent 28c017f894
commit c105198c6e
1 changed files with 10 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
README.md
+10
View File
@@ -185,3 +185,13 @@ Following are some of the most commonly used constraints available in SQL −
− Used to create and retrieve data from the database very quickly. − Used to create and retrieve data from the database very quickly.
# Data Integrity 🚧 # Data Integrity 🚧
- The following categories of data integrity exist with each RDBMS −
**Entity Integrity − There are no duplicate rows in a table.**
**Domain Integrity − Enforces valid entries for a given column by restricting the type, the format, or the range of values.**
**Referential integrity − Rows cannot be deleted, which are used by other records.**
**User-Defined Integrity − Enforces some specific business rules that do not fall into entity, domain or referential integrity.**