What is Array in C ?
Arrays are defined as collection of similar type of data items that is stored at consecutive blocks of memory locations....
Can you use UNIQUE KEY as a replacement for Primary Key ?
Both Keys are different. For Identifying each and every record in a table we use primary key. To apply additional uniqueness...
What are all the different attributes of indexes ?
The indexing has various attributes: Access Types: Value based search , range acess can be refered using Access types....
What are the different types of SQL commands ?
DDL (Data Definition Language) DML (Data Manipulation Language) DCL (Data Control Language) TCL (Transaction Control...
Difference between SQL and PLSQL
SQL PL/SQL SQL is structural query language for database. It has no variables. Pl/SQL is a programming language using SQL...
Char vs Varchar in SQL
Char VarChar Char data type is used for storing single character values It is a SQL Code that helps in storing variable...
What is Default constraint in SQL ?
Constraints are a certain set of rules used for processing data and limiting the type of data that can go into the table....
What are the different types of relationships in SQL ?
Data base collects different types of data that uses tables, record, and columns. For easy storage of data, a well-defined...
Types of indexes in SQL
There are various types of indexes in SQL server: Clustered Index Non-Clustered Index Column Store Index Filtered Index Hash...
What is the difference between BETWEEN and IN operators in SQL ?
BETWEEN IN This condition allows you to check if given values are in the specified range. In operator is used for matching...
What is a join in SQL ? What are the types of joins ?
Data is stored in multiple tables that are related to each other in relational data bases like SQL Server, MySQL etc with a...
