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SQL Interview Questions and Answers PDF Download for Oracle, MySQL, AWS Redshift, Google BigQuery, Snowflake, PostgreSQL, MariaDB, IBM DB2, Sybase, SQL Server and Teradata. ANSI SQL Concepts.
SQL INTERVIEW QUESTIONS - INDEX
SQL JOINS: INNER, LEFT, RIGHT, FULL OUTER JOINS
What is SQL INNER JOINS
What is SQL LEFT OUTER JOINS
What is SQL RIGHT OUTER JOINS
What is SQL FULL OUTER JOINS
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SQL Joins: What are the different types of SQL JOINs? Explain with examples.
The following are the different Types of SQL JOINs: • INNER JOIN • LEFT (OUTER) JOIN • RIGHT (OUTER) JOIN • FULL (OUTER) JOIN
SQL: INNER JOIN
The ‘Inner Join’ always returns ‘Only Matching Records’ between ‘Two Tables’.
SQL: LEFT (OUTER) JOIN
The ‘Left (Outer) Join’ always returns ‘All the records from LEFT Table’ and ‘Matching Records’ from ‘RIGHT Table’.
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