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When you have a subquery inside of the main query, which query is executed first?

• They are executed at the same time.
• The subquery is never executed. Only the main query is executed.
• the main query
• the subquery

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You need to export the entire database, including the database objects, in addition to the data. Which command-line tool do you use?

• mysqladmin
• mysqlexport
• mysqldump
• mysqld

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You must ensure the accuracy and reliability of the data in your database. You assign some constraints to limit the type of data that can go into a table. What type of constraints are you assigning?

• function level
• column level
• database level
• row level

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Which option of most MySQL command-line programs can be used to get a description of the program's different options?

•  --options
•  ?
•  --help
•  -h

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MySQL uses environment variables in some of the programs and command-line operations. Which variable is used by the shell to find MySQL programs?

• PATH
• MYSQL_HOME
• HOME
• DIR

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