What is a crosswalk table?
Crosswalk table a is a reference table which gets all the columns from two or more different tables. Table1 ID | Name | Address | Zip | PhoneNumber ----------------------------------------------------- IN11 ....
Tag: SQL
SQL JOIN
A JOIN clause is used to combine rows from two or more tables, based on a related column between them. Different Types of SQL JOINs The different types of the ....
NULL check in SQL
IS NULL is used to do NULL check in SQL. Sample Query: SELECT * FROM CustomersWHERE Column IS NULL
Download SQL Server Management Studio (SSMS)
To download Download SQL Server Management Studio (SSMS), check the below link https://docs.microsoft.com/en-us/sql/ssms/download-sql-server-management-studio-ssms Note: Download the current General Availability (GA) version of SSMS.
How to start executing SQL commands in SQL command line?
1. Open your command prompt and use "sqlplus" command. 2. Enter your username and password and start using the SQL command line.
What is the default username for Oracle Database Express Edition?
The default username for Oracle Database Express Edition is "system".
How to create database using SQL?
Syntax: CREATE DATABASE db_name Example: CREATE DATABASE MyDevDB