#operators in sql

The SQL IN operator allows you to specify multiple values in WHERE Clause .it used to reduce the multiple condition OR in the SELECT, INSERT, UPDATE, or DELETE Statement. Syntax SELECT columnname(s) FROM tablename WHERE columnname IN (value1, value2, ...valueN);   Example Consider a table named “Students” and the table have some…

This post aims to give some examples to novices on how to obtain data from SQL Server using clauses and operators. The examples contain not only clauses and operators but also some arithmetic expressions.

This post aims to give some examples to novices on how to obtain data from SQL Server using clauses and operators. The examples contain not only clauses and operators but also some arithmetic expressions. To retrieve data from a table named “tbStudent” SELECT * FROM tbStudent; To retrieve information about a specific student (whose StudentID is 1001) from “tbStudent” SELECT * FROM tbStudent WHERE…

Sometimes, we deal with requirements where data from the particular range are to be fetched in the report or an application. Operators in PL/SQL plays an important role to identify selective data from large chunks of transactions.

Operators are also used in operations such as unique data retrieval, fetching of data based on its relative existence in other tables and to stop queries from scanning…