Welcome to Mindmajix - The leading global online training platform. If you're looking for Oracle PL SQL Interview Questions or Freshers, you are in the right place. There are a lot of opportunities from many reputed companies in the world.According to research,Oracle PL SQL has a market sha...
Through this set of interview questions, you will come across multiple tricky SQL queries for the interview. You will be equipped with top advanced SQL interview questions that will help you to ace your SQL coding interview rounds. It also contains Oracle SQL interview questions and complex SQL ...
The UNION keyword is used in SQL for combining multiple SELECT queries but deletes duplicates from the result set. The INTERSECT keyword is only used for retrieving common rows using SELECT queries between multiple tables. The MINUS keyword essentially subtracts between two SELECT queries. The resul...
This is one of the tricky SQL Interview Questions. Interviewer may ask you this question in another way as what are the advantages of Union All over Union. Both Union and Union All concatenate the result of two tables but the way these two queries handle duplicates are different. Union:It ...
This is an in-depth series covering almost all Oracle Interview questions: Part #1:Oracle Basic, SQL, PL/SQL Questions(this article) Part #2:Oracle DBA, RAC, and Performance Tuning Questions Part #3:Oracle Forms and Reports Interview Questions ...
Here, you will find a collection of real-world Interview questions asked in companies like Google, Oracle, Amazon, and Microsoft, etc. Each question comes with a perfectly written answer inline, saving your interview preparation time. It also covers practice problems to help you understand the ba...
SELECT ( queries that return exactly one row) Q #8) When do we use triggers? Answer:The word ‘Trigger’ means to activate. In PL/SQL, the trigger is a stored procedure that defines an action taken by the database when the database-related event is performed. ...
SQL Interview Questions For Freshers SQL Joins SQL Performance Tuning SQL Practice Quiz SQL Tutorials Technology Review Unix Interview Questions Unix Tutorials Tags Basic SQL QueriesComplex Viewdifference between simple view and complex viewEqui joinInner JoinLogical table in SQLNon Equi JoinOracleOuter ...
Summary – Top 50 Tricky SQL Queries for Interview The SQL queries provided here should work on popular databases like MySQL, SQL Server, and Oracle with only minor adjustments. These queries use common SQL commands like SELECT, FROM, WHERE, and others that are widely supported. Still, here ...
SQL Server Interview Questions and Answers for Freshers 1. Compare SQL Server with Oracle.dsj 2. How can SQL Server instances be hidden? To hide aSQL Server instance, we need to make a change in SQL Server Configuration Manager. To do this, we have to follow the below steps: ...