Which constraints we can use while creating database in sql?

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how to check server status with 'mysqladmin'? : Sql dba

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how do you know if your mysql server is alive? : Sql dba

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What is cascade in sql?

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Can we use joins in subquery?

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Let us suppose we have a table with structure in order empno empname empdesig empcountry and now i want to re-organize the columns of this table to empno empdesig empname empcountry how can i do this with queries ? assume that table contains the data.

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how to get a list of all tables in a database? : Sql dba

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How does cross join work in sql?

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What does a pl/sql package consist of?

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What is a unique key and primary key and foreign key?

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How do you clear the screen in sql?

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what is the difference between truncate and delete statement? : Transact sql

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