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Oracle SQL

Oracle SQL is a relational database management system (RDBMS) known for its robustness and scalability. It provides a comprehensive set of tools for managing and querying data in structured formats, making it widely utilized in enterprise-level applications and systems.

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Frequently asked questions
  • What is Oracle SQL?

    Oracle SQL, often referred to as Oracle Database or Oracle RDBMS (Relational Database Management System), is a powerful and widely used relational database management system developed by Oracle Corporation. It uses SQL as its query language.

  • How do you connect to an Oracle database?

    Connecting to an Oracle database involves specifying connection details like the database hostname, port, service name, username, and password. This can be done using SQL*Plus, SQLcl, or various programming languages and tools that support Oracle database connections.

  • What is the purpose of the SELECT statement in Oracle SQL?

    The SELECT statement in Oracle SQL is used to retrieve data from one or more tables. It allows users to specify the columns to be retrieved, apply conditions using the WHERE clause, join multiple tables, and perform various other operations on the selected data.

  • How do you create a new table in Oracle SQL?

    To create a new table in Oracle SQL, you use the CREATE TABLE statement. This statement includes the table name, column names, data types, and any constraints or indexes.

  • Explain the purpose of the JOIN operation in Oracle SQL.

    The JOIN operation in Oracle SQL is used to combine rows from two or more tables based on a related column between them. Common types of joins include INNER JOIN (returns rows with matching values in both tables) and LEFT JOIN (returns all rows from the left table and the matched rows from the right table).

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