172 SQL Questions and Answers:SQL Job Interview Questions Table of Contents: What is SQL (Structured Query Language)? What is the SQL*Plus? What is NVL? What is a Character Functions? What is SET? What is a TTITLE & BTITLE? What is sql BREAK? What is sql JOIN? What is sql ...
The following can also be utilized to amalgamate two tables. This can also be utilized for acquiring information from there. SQL comprises of 4 different kinds of joins. They are Inner Join, Right Join, Left Join and Full Join. 5) How can we distinguish between CHAR and VARCHAR 2 data ty...
whereas outer joins result in the union of two tables. For example, if a from table A has no matching entry in table B, A will be included in the left outer join but in the inner join not.
We'll be going through six questions covering topics like query performance, joins, and SQL injection. They'll refer to the same database for cakes, customers, and orders at a bakery. Here's the schema: CREATETABLEcakes(cake_idINTNOTNULLAUTO_INCREMENTPRIMARYKEY,flavorVARCHAR(100)NOTNULL);CRE...
SQL Interview Questions http://career.guru99.com/top-50-sql-question-answers/ 1. What is DBMS? A Database Management System (DBMS) is a program that controls creation, maintenance and use of a database. DBMS can be termed as File Manager that manages data in a database rather than ...
Don't be surprised with questions like 'what is the maximum number of columns per table'. Check out SQL Server books online for the page titled: "Maximum Capacity Specifications". 11. Explain Active/Active and Active/Passive cluster configurations Hopefully you have experience setting up cluster ...
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.
Softwaretesting-QuestionsandAnswers-SQLInterviewQuestions Q.WhatdoesSQLstandfor? A.StructuredQueryLanguage Q.Whatisaprimarykey? A.Primarykey:EachrowofthedatainatableuniquelyidentifiedbyaPrimaryKey Thecolumn(columns)thathascompletelyuniquedatathroughoutthetableis ...
There are two common ways an SQL tech screening can be done. The simpler but less common way is that you get a computer, a data set, and a task. While you are solving the task, the interviewers are listening and asking questions. A little trial-and-error is totally fine, as long as...
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...