Mysql miscellaneous

Mysql miscellaneous

Easy Questions

MYSQL

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  1. When building from source, the embedded server library is enabled by what?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: C

    While building from the source, the embedded server library is enabled by using the option ‘–with-embedded-server’ while running ‘configure’. This applies equally to MySQL 5.0 and 5.1.

  1. What is the embedded server library containing the MySQL server linkable into applications?










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    NA

    Correct Option: A

    MySQL includes an embedded server library, libmysqld, containing the MySQL server in a way that can be linked into applications. This enables the production of MySQL-based standalone applications.

  1. The string function that returns the index of the first occurrence of substring is _____________.










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    NA

    Correct Option: C

    The string funtion ‘INSTR()’ is used to return the index of the first occurrence of the substring. The function ‘INSERT()’ is used to insert a substring at the specified position up to the specified number of characters.

  1. The synonym for last_insert_id session variable is _____________.










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    NA

    Correct Option: D

    The session only system variable ‘identity’ is a synonym for the ‘last_insert_id’ session variable. Setting ‘last_insert_id’ specifies the value to be returned by the function ‘LAST_INSERT_ID()’.

  1. Which variable when set to 1 would enable foreign key checking for InnoDB tables?










  1. View Hint View Answer Discuss in Forum

    NA

    Correct Option: D

    Setting the variable ‘foreign_key_checks’ to 0 or 1 disables or enables the foreign key checking for InnoDB tables. The default is to perform checking. Disabling key checks can also be helpful.