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I am new to oracle server 18c (currently taking an online course). My problem is sql*plus where I tried to use sqlplus then sys as sysdba (it did not…
1 Answer · 1.2K Views · Answered ✓
I have a database which is 11TB in size. I recently truncated over 5TB of data from this database.(I am fully familiar with all the reasons why you…
1 Answer · 634 Views · Answered ✓
I have a table where date | interval juin 1, 2022, 12:00 AM | 0 years 0 mons 0 days 0 hours 1 mins 58.963179 secs juin 2, 2022, 12:00 AM | 0 years 0…
1 Answer · 1.0K Views · Answered ✓
I have values in a column named Date as a nvarachar data type in the form of mmddyy and want to convert the values to a date datatype in the form of…
1 Answer · 886 Views · Answered ✓
Which one is the best option to get the identity value I just generated via an insert? What is the impact of these statements in terms of…
3 Answers · 9.8K Views · Answered ✓
I'm working on Debian 8 and wanted to create a database using MySQL Workbench. I did everything in this tutorial, but when I created a new MySQL…
1 Answer · 2.0K Views · Answered ✓
We're in the process of migrating to a new character set for several tables in our database. Some tables are currently using utf8/utf8mb3 character…
1 Answer · 818 Views · Answered ✓
I am trying to delete a principal from the database but can't because it owns a schema. When I go to edit the user, however, the box to uncheck…
1 Answer · 1.6K Views · Answered ✓
When I did my first interview, I faced this confusing question. By using join we can join the tables, but what is the main purpose of FOREIGN KEY in…
1 Answer · 964 Views · Answered ✓
I have gone through the definition on http://en.wikipedia.org/wiki/Database_engine several times:A database engine (or "storage engine") is the…
1 Answer · 1.1K Views · Answered ✓
I discovered that my phpmyadmin cannot login with my root password. So I updated the password as follow:# mysql mysql> UPDATE user set…
1 Answer · 818 Views · Answered ✓
SELECT * FROM wp_posts WHERE ID IN ((SELECT courses FROM wp_category WHERE CatID =401) OR (SELECT meta_value FROM wp_postmeta WHERE post_id IN…
1 Answer · 1.2K Views · Answered ✓
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SQL Server Top 75 SSAS Interview Questions and Answers For Beginners & Experts
Prepare for your SSAS interview with our comprehensive guide featuring 75 top SQL Server Analysis Services interview questions…
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How to become a sql database administrator In 2025, discover what these professionals do, explore how much they earn and learn…
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Compare OLTP vs OLAP with clear definitions, architecture diagrams, real-world examples, and FAQs. Learn when to use each system…
SQL Server 70+ Most Asked SSIS Interview Questions for Freshers & Experienced
Prepare for your next SQL Server Integration Services (SSIS) interview with our top 70+ SSIS interview questions and answers.…
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