PostgreSQL Backup Interview Questions 44. How can you take the backup of a database? PostgreSQL permits the user to take a backup of the database by using “pg_dump”. To perform a backup on a plain-text SQL file, login into your database server and implement the following command: pg...
Hence, they only need to concentrate on those SQL areas where the interviewer can most likely ask questions. That’s why we wrote this post to make you aware of the most frequently asked SQL interview questions you should know. We only wish to guide you in reading the content which is re...
Here is the list of top Oracle DBA Interview Questions and Answers for freshers and experienced to help you crack top MNCs looking for database jobs in 2024.
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 a...
Support for importing all sizes and ranges of data Data highlighting and filtering 8. What are the benefits of Tableau? Candidates are likely to encounter this most common Tableau interview question referring to direct advantages of Tableau. The prominent benefits of Tableau include, ...
is intended to help you through a variety of SQL questions based on topics such as MS SQL Server, MySQL, and others. This is a one-stop resource for maximizing your benefit and preparing for job interviews. Consider the following top SQL Query interview questions that employers are now ...
44Q) How do you simulate the EXPLAIN of an embedded SQL statement in SPUFI/QMF? Give an example with a host variable in where clause)? Ans:Use a question mark in place of a host variable (or an unknown value). For instance,SELECT EMP_NAME FROM EMP WHERE EMP_SALARY > ?
This is a very tricky question. The work should always be more important than the money. This frame of mind is good for you(at least at the time of interview). Possible Answer 1 "Money is always important, but the work is most important for me." ...
在SQL中,主要有两种连接类型,内连接和外连接。外连接包括右外连接和左外连接。内连接和左连接的主要区别是,内连接中两个表都匹配的记录才被选中,左连接中两个表都匹配的记录被选中,外加左表的所有记录都被选中。要留意包含“所有”的查询,它们往往要求左连接,例如写一个SQL查询来找所有的部门和它们的雇员人数。
scripting, and markup languagessurvey made by StackOverflow in 2022. Therefore SQL is essential and should not be missing from ourpreparation for technical interviews. We will start with some of the most fundamentalSQL interview questionsabout databases and increase the difficulty level along the way...