Search results
Interview Questions for beginners and professionals with a list of top frequently asked interview questions and answers on job, hr, competency, java, database, testing, oracle, sql, php, .net, python etc.
Jan 3, 2024 · The steps are as follows: Step 1: Navigate to the bin folder of the PostgreSQL installation path. C:\>cd C:\Program Files\PostgreSQL\10.0\bin. Step 2: Execute pg_dump program to take the dump of data to a .tar folder as shown below: pg_dump -U postgres -W -F t sample_data > C:\Users\admin\pgbackup\sample_data.tar.
Apache Hive is a Data warehousing tool developed over the Hadoop Distributed File System (HDFS). It runs SQL like queries called HQL (Hive Query Language), which gets internally converted to map reduce jobs. Hive is developed by Facebook and used for querying and analysis of data that is stored in HDFS.
In PostgreSQL, Write-Ahead Logging or WAL is a standard method to ensure data integrity. It is a protocol or syntax to write actions and changes into a transaction log. The Write-Ahead Logging feature is used to enhance the reliability of the database by logging changes before any changes or updating to the database.
A snapshot is a replica of a target master table from a single point-in-time. In simple words you can say, snapshot is a copy of a table on a remote database. 10) What is the difference between hot backup and cold backup in Oracle? Tell about their benefits also.
AWS Interview Questions. Accounting Interview Questions. HTML Interview Questions or HTML5 Interview Questions for beginners and professionals with a list of top frequently asked HTML interview questions and answers with java, .net, php, database, hr, spring, hibernate, android, oracle, sql, asp.net, c#, python, c, c++ etc.
May 29, 2024 · This article is packed with over 100 SQL interview questions and practical exercises, organized by topic, to help you prepare thoroughly and approach your interview with confidence. SQL is essential for many jobs, like data analysis, data science, software engineering, data engineering, testing, and many others.
