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package com.tcs.ilp.h51.servlet;
import java.io.IOException;
import java.sql.SQLException;
import java.util.ArrayList;
import javax.servlet.RequestDispatcher;
import
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SQL PRIMARY KEY Constraint
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The PRIMARY
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The Tutorial illustrate an example to understand SQL PRIMARY
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foreign key mysql Hi,
How to add
foreign key in mysql using the query 'alter table add
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Thanks
Hi,
We can use the following query:
ALTER TABLE emp_address
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*
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constraint is a property in SQL assigned to a column or the set
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key constraint cannot accept
null values.whereas column holding the unique
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hii,ADS_TO_REPLACE_1
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key: columns entry of duplicate as well as null values are restricted
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