Update README.md

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GowthamRaj K
2021-07-29 08:28:44 +05:30
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@@ -724,3 +724,6 @@ The following guidelines indicate when the use of an index should be reconsidere
- The SQL ALTER TABLE command is used to add, delete or modify columns in an existing table.
- You should also use the ALTER TABLE command to add and drop various constraints on an existing table.
### New Column