Update README.md

2026-04-30 22:13:56 +07:00 · 2021-07-28 11:28:54 +05:30
parent 84cf191c46
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@@ -381,3 +381,5 @@ Following are some of the most commonly used constraints available in SQL −
 ## 3) Date and Time Data Types

 ![image](https://user-images.githubusercontent.com/43011442/127271285-779bde09-bd62-4d0f-8045-4665634b6fea.png)
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+## 4) Character Strings Data Types