Skip to main content

SQL Naming Conversion

Naming Conversion in SQL

Naming Conversion is nothing but it is a rules to follow by SQL at the time of write table name or column name.
  • Table should not contain duplicate column.
  • When we insert the value in table user no need to follow any order.
  • Database should not contain any duplicate object (table).
  • When we defined the variable in table user no nedd to follow any order.
  • Table name may be in upper case or lower case.
  • To join two word use "_" like employee_id.
  • Column name may be in upper case or lower case.
  • Avoid using datatype like text is datatype in sql.
  • Avoid quotes, Avoid using names like "FirstName" or "All Employees".
  • Avoid use reserved keyword used for table name or column name. Like user is reserve word in sql.

Comments

Popular posts from this blog

SQL Commands

SQL Commands SQL Commands  are mainly classified into four types, which are DDL command, DML command, TCL command and DCL command. SQL is mainly divided into four sub language Data Definition Language(DDL) Data Manipulation Language(DML) Transaction Control Language(TCL) Data Control Language(DCL) Only for remember You can easily remember all these SQL command like below; DDL Commands:  "dr. cat" d-drop, r-remane, c-create, a-alter, t-truncate. DML Commands:  "sudi". s-select, u-update, d-delete, i-insert. TCL Commands:  These commands are related to transaction, commands are: Commit, Rollback, Savepoint

Python - Function

Define Function in Python Function is block of codes. Python provide built-in and user define both types of function. Built-in function User defined function Built-in function This type of functions are pre-defined, you can directly use in your program. For example  print function is used for display message on screen or console. Print hello world in python a = "Hello World!" print a User defined function This type of functions are defined by programmer. According to your requirement you can defined you function name and it's functionality. In python you can define any function by using  def keyword. Syntax for define function in python def function_name ( parameter ) function body Define function in python def my_function(fname): print(fname + " Refsnes") my_function ("Emil") my_function ("Tobias") my_function ("Linus") Output Emil Refsnes Tobias Refsnes Linus Refsnes Explanation

Frames

A framed page is actually made up of multiple HTML pages. There is one HTML document that describes how to break up the single browser window into multiple windowpanes. Each windowpane is filled with an HTML document. Frame Page Architecture §   A <FRAMESET> element is placed in the html document before the <BODY> element. The <FRAMESET> describes the amount of screen real estate given to each windowpane by dividing the screen into ROWS or COLS . §   The <FRAMESET> will then contain <FRAME> elements, one per division of the browser window. §   Note: Because there is no BODY container, FRAMESET pages can't have background images and background colors associated with them. Frame Page Architecture <HTML> <HEAD> <TITLE> Framed Page </TITLE> <FRAMeSET COLS=“23%,77%”> <FRAME SRC=“Doc1.html”> <FRAME SRC=“Doc2.html”> </FRAMeSET > </HEAD> </HTML>