SQL (Structured Query Language) is a programming language used for managing and manipulating relational databases. It is used for inserting, updating, and querying data in a database. SQL statements are used to perform tasks such as updating records, deleting records, and retrieving data from tables in a database.

List of articles on SQL:

Limit the number of rows in SQL query results
How to use a single quote in SQL

Oracle is a relational database management system (RDBMS) that is widely used for enterprise-level applications and data warehousing. It is developed and marketed by Oracle Corporation.

Oracle uses the SQL for querying, modifying and managing data in the database. It also supports other languages such as PL/SQL, which is a procedural language designed specifically for Oracle databases.

List of articles on databases:

Check locked objects in Oracle
Check tablespace size in Oracle

An SQL client is a software application that allows users to interact with a relational database management system (RDBMS) using SQL. It allows users to execute SQL commands and view the results of those commands in a user-friendly interface.

Some of the most popular SQL clients today are:

  • MySQL Workbench (for MySQL databases)
  • Oracle SQL Developer, TOAD (for Oracle databases)
  • pgAdmin (for PostgreSQL databases)
  • SQL Server Management Studio (for Microsoft SQL Server databases)

SQL clients typically provide features such as syntax highlighting, code completion, and the ability to connect to multiple databases. They also often allow users to perform common database management tasks such as creating tables, modifying data, and running backups.

SQL clients tips:

Enable word wrap in Toad
Enable word wrap in Oracle SQL Developer
Enable line numbering in Oracle SQL Developer
Auto replace shortcuts in Oracle SQL Developer
Auto replace shortcuts in Toad