PHP Course For Beginners > MY SQL with PHP

MySQL Function

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A function in MySQL is a stored programme into which you can pass parameters and get a value back.

A stored function and user-defined functions are created with the CREATE FUNCTION statement. A stored function is a collection of SQL statements that perform a single task and return a single result. It can be called from within a Mysql statement, just like the built-in function in MySQL.

  • String Functions. ASCII CHAR_LENGTH CHARACTER_LENGTH CONCAT CONCAT_WS FIELD FIND_IN_SET FORMAT INSERT INSTR LCASE.
  • Numeric/Math Functions. ABS ACOS ASIN ATAN ATAN2 AVG CEIL CEILING COS COT COUNT DEGREES.
  • Date/Time Functions.
  • Advanced Functions.

AVG, COUNT, SUM, MIN, DATE, and other functions can be used with select statements in SQL. Every time a function is called, it compiles. A value or result must be returned by functions. Only input parameters are used by functions. In functions, try and catch statements are not utilised.

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  1. What is Data
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  2. What is Database
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  3. What is DBMS
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  4. SQL Queries and its types
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  5. Data Types in SQL - from 16
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  6. SQL constraints
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  7. Create, Drop & Show Database
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  8. SQL Create Table
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  9. SQL Insert & Select Statement
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  10. Operators in SQL
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  11. In & NOt in Condition
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  12. Null & Not Null Condition
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  13. Clauses in SQL
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  14. Understanding Having, Distinct & Group by
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  15. Update & Delete in SQL
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  16. Alter table command in SQL
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  17. MySQL Rename truncate Drop
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  18. Understanding Foreign key
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  19. MySQL joins
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  20. MySQL views
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  21. MySQL Function
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  22. MySQL Procedure
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  23. MySQL Trigger
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  24. Normalization
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  25. Assignment : MYSQL
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  1. Arithmetic & Assignment Operators in PHP
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  1. Database Connection in PHP Part 1
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  2. Database Connection in PHP Part 2
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