WebJul 7, 2024 · SQL functions Class 12 Informatics Practices Notes Basically, it is a set of SQL statements that accept only input parameters, perform actions and return the result. A function can return an only a single value or a table. Functions are not alternate to sql commands but are used as a part of sql command (generally select command). WebApr 18, 2024 · Class 12 Informatics Practices Database Query using Sql Notes and Questions TOPIC – DBMS CONCEPTS Q1. What are different categories of commands in SQL? Ans. i) Data Definition Language (DDL) ii) Data Manipulation Language (DML) iii) Transaction Control Language (TCL) iv) Session Control Commands. v) System Control …
SQL Class 12 Notes CBSE Computer Science – techtipnow
WebAug 19, 2024 · MySQL Math Text Functions Class 12 Functions are commands written with required values as parameters to fulfil various tasks related to calculations or logical comparison or displaying statistics from the database. Consider the following database table for all functions: SQL Table Math Functions – MySQL Math Text Functions Class 12 WebNov 2, 2024 · Now in this section of Database Query SQL Class 12, we are going to discuss aggregate functions that return one value from the set of specified rows. There are two keywords used to group data into columns: Distinct All Distinct keyword It avoids the duplicates data. Observe the following table named Departments: departments hubflix hdmovieshub
Class 12 IP Database Query Using SQL Notes - techtipnow.in
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