Oracle JOIN Query
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A JOIN in Oracle is used to combine rows from two or more tables based on a related column between them. Sample Tables STUDENT Table STUDENT_ID NAME DEPT_ID 101 Amit…
Oracle Query
CREATE TABLE S1_123 (StudentID INT,Name VARCHAR(50) NOT NULL);insert into s1_123 values(1,’aaa’);select * from s1_123;alter table s1_123 add(email varchar2(100) unique);alter table s1_123 modify(StudentID Int Primary Key);insert into s1_123 values(2,’aaa’,’123@gmail.com’);desc s1_123;insert into…
Below are Oracle SQL examples for CREATE TABLE, INSERT, UPDATE, DELETE, ALTER (ADD, DROP, MODIFY), and DROP TABLE.
1. CREATE TABLE Syntax: Example: 2. INSERT INTO Syntax: Example: Display Data Output SID SNAME CITY MARKS 101 Rahul Rajkot 85 102 Priya Ahmedabad 90 103 Amit Surat 78 3.…
WordPress Dashboard Overview
The WordPress Dashboard is the administrative control panel where you manage your website’s content, appearance, users, and settings. WordPress Official Website Main Dashboard Sections Dashboard Widgets (Home Screen) Common widgets…
CREATE Command in SQL
The CREATE command is a DDL (Data Definition Language) command used to create database objects such as tables, views, indexes, and databases. Syntax Create a Table Example 1: Create Student…
SQL Data Types
SQL Data Types specify the type of data that can be stored in a table column. They help ensure data accuracy and efficient storage. 1. Character (String) Data Types Data…
SQL Commands and Statements
SQL commands are instructions used to perform specific tasks in a database. SQL statements are categorized into different types based on their functions. 1. DDL (Data Definition Language) DDL commands…
what is SQL and SQL* plus?
What is SQL? SQL (Structured Query Language) is a standard language used to communicate with relational databases. It is used to create, store, retrieve, update, and delete data from databases.…
Install WordPress Locally Using XAMPP
Step 1: Download and Install XAMPP Step 2: Add the WordPress Files Step 3: Create a Database for WordPress Step 4: Install WordPress Completion After the installation is finished, log…
Integrity Constraints
The constraints you listed are Integrity Constraints in DBMS/RDBMS. They help maintain the accuracy and consistency of data. 1. NOT NULL Constraint Ensures that a column cannot have a NULL…