Data engineer girl on Instagram: "Detailed breakdown of the Inner Join, one of the most fundamental concepts in SQL 1. What is an Inner Join? An Inner Join is used to combine rows from two or more tables based on a related column between them. Think of it as a filter: The result only includes rows where there is a match in BOTH tables. If a record exists in Table A but has no matching record in Table B, it is excluded from the results. > The Simple Rule: "Show me only the data that overlaps." 2.

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Corporate Guy on Instagram: "🔥 8 Things to Pass Infosys FA2 DBMS - SQL 1. Joins + Subqueries = FA2’s core scoring area Be absolutely fluent in INNER, LEFT, RIGHT, FULL and SELF JOINs. Practise subqueries in WHERE, FROM, SELECT, HAVING. Correlated subqueries + “nth highest salary” type questions come repeatedly. 2. Hands-on SQL practice is the game-changer FA2 always gives 3–4 query-writing tasks based on a given schema. Focus on module assignments — they mirror FA2 difficulty exactly. Practise