Knowledge Walls
John Peter
Pune, Maharashtra, India
Mysql Indeep
Blob in select query result How to get total milliseconds, seconds, minutes and hour by Date in Mysql How to convert upper and lower in mysql blob, binary and varbinary fields data? How to get Current TimeZone Date and UTC or GMT date time in Mysql How to Create dynamic pivot query in mysql with Example Number and Exponential number rounding issue in Mysql with Example Remove decimal places without rounding in mysql using truncate with Example
Smart Tricks
MATCH.. AGAINST.. FULL TEXT Search and Result Ordered by more relevance Case sensitive string comparison in mysql with example How to copy table with constraints in mysql? SELECT Query Serial no creation Comparing multiple columns with single value IN() with multiple column values
Procedure
Procedure Recursion Multiple cursors in mysql stored procedure with example How to create stored procedure in mysql with routine comment example How to find factorial with mysql recursive stored procedure with example
INFORMATION_SCHEMA Db
`INFORMATION_SCHEMA`.`KEY_COLUMN_USAGE` `INFORMATION_SCHEMA`.`ROUTINES` `INFORMATION_SCHEMA`.`COLUMNS` `INFORMATION_SCHEMA`.`TABLES`
Cool Topics
NULL-safe equal and not equal operators in mysql How to ignore constraints while insert,update or delete records in Mysql? How to drop all constraints in Mysql? How to manage users in Mysql? Uppercase first letter(ucfirst) in mysql with example Automatic insert and update timestamp on Mysql table's IFNULL method with Example
Mysqldump
Dumping Database in MYSQL Mysqldump routines without definer in Linux Two ways to Change password of root user in Mysql Dumping Triggers / Skip Triggers in mysqldump Dump in mysql with ignore only few table data Dumping Table in MYSQL
Methods
COMPRESS() and DECOMPRESS() Method in Mysql with Example HEX() and UNHEX() method in MySQL with Example COALESCE() method in Mysql with Example ASCII() and CHAR() Method in Mysql with Example INET_ATON() and INET_NTOA() Method in Mysql with Example AES_ENCRYPT() and AES_DECRYPT() Method in Mysql with Example GREATEST() and LEAST() Method in Mysql with Example
Methods [cont'd]
DES_ENCRYPT() and DES_DECRYPT() Method in Mysql with Example
My.ini Configuration Settings
How to configure current or default time zone as GMT in Mysql using my.ini file
Difference between
DETERMINISTIC vs NON-DETERMINISTIC
`INFORMATION_SCHEMA`.`ROUTINES` in INFORMATION_SCHEMA Db of MySQL
4531 Views
INFORMATION ROUTINES Table 
ROUTINES Table contains procedures and functions of all schemas. schema name, routine name, routine type, routine definition, definer, charset, created date and more.

Name of the Column Type Null
SPECIFIC_NAME  varchar(64)  NO
ROUTINE_CATALOG  varchar(512)  YES
ROUTINE_SCHEMA  varchar(64)  NO
ROUTINE_NAME  varchar(64)  NO
ROUTINE_TYPE  varchar(9)  NO
DTD_IDENTIFIER  varchar(64)  YES
ROUTINE_BODY  varchar(8)  NO
ROUTINE_DEFINITION  longtext  YES
EXTERNAL_NAME  varchar(64)  YES
EXTERNAL_LANGUAGE  varchar(64)  YES
PARAMETER_STYLE  varchar(8)  NO
IS_DETERMINISTIC  varchar(3)  NO
SQL_DATA_ACCESS  varchar(64)  NO
SQL_PATH  varchar(64)  YES
SECURITY_TYPE  varchar(7)  NO
CREATED  datetime  NO
LAST_ALTERED  datetime  NO
SQL_MODE  varchar(8192)  NO
ROUTINE_COMMENT  varchar(64)  NO
DEFINER  varchar(77)  NO
CHARACTER_SET_CLIENT  varchar(32)  NO
COLLATION_CONNECTION  varchar(32)  NO
DATABASE_COLLATION  varchar(32)  NO
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