These questions include SQL interview questions for freshers and experienced, as well as SQL query interview questions. 1. What is the difference between a primary key and a unique key? 2. What is a constraint, and why use constraints? 3. What is the COALESCE function? 4. What are UNION...
MariaDB, MS SQL, and PostgreSQL databases. It supports database management with a complete data synchronization option and a query generating function. HeidiSQL is a valuable and dependable tool for web developers. It allows you to browse and update data, as well as build and edit tables...
Top T-SQL Interview Questions for Freshers 1. A Query Language for working with sets is SQL. Microsoft uses the proprietary procedural language TSQL in SQL Server. Numerous features not found in SQL are added by T-SQL. This gives you more flexible control over how the application behaves by ...
Here is the interview process conducted by Oracle to hire a capable workforce for themselves. Oracle interview experience is different for different individuals. But there is a typical pattern that is followed for the selection of workforce at Oracle. Oracle Interview Process: Resume Screening:The fi...
Comprehensive, community-driven list of essential SQL interview questions. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next SQL interview ahead of time.
To achieve a free-form SQL query, you have to use the –m1 option. This would create only one MapReduce task. This would then import the rows directly. Q6) Describe the importance of using –compress-codec parameter The –compress-codec parameter can be used to get the export file of ...
Learn top 35+ UX designer interview questions and answers in 2025 for freshers and experienced professionals and crack your next UI UX job interview hassle-free!
Advanced PL/SQL Interview Questions Let's now explore some advanced interview questions in case you are applying for a more senior role that requires more experience. 10. What are the methods of optimizing performance in PL/SQL? Minimizing context switches between SQL and PL/SQL is crucial for...
👉 Gratis PDF-download: SQL Server-interviewspørgsmål og svar 2. Hvad er SQL Profiler? SQL Profiler er et værktøj, som giver systemadministratoren mulighed for at overvåge hændelser i SQL-serveren. Dette bruges hovedsageligt til at fange og gemme data om hver hænd...
For more information, see the article:Maintaining SQL Server indexes. Q24: How can you find the missing indexes that are needed to potentially improve the performance of your queries? TheMissing Index Detailsoption in the query execution plan, if available. ...