Oracle's default DATE format
This question explores how Oracle handles DATE values by default, including its internal storage format and how dates are displayed or queried…
1 Answer · 689 Views · Answered ✓
Get a modern-day SQL Developer Training that will help you learn the basics of database querying, Microsoft SQL and the best-practices of Database Management to gain confidence with our Online SQL Certification and surmount a trending career field
This question explores how Oracle handles DATE values by default, including its internal storage format and how dates are displayed or queried…
1 Answer · 689 Views · Answered ✓
I'm trying to better understand file and directory permissions in Linux, especially the commonly seen 755 permission setting. I know that permissions…
1 Answer · 1.6K Views · Answered ✓
This question compares how NOT IN and NOT EXISTS work in SQL queries, especially in terms of performance, handling of NULL values, and best use cases.
1 Answer · 764 Views · Answered ✓
How can you use an SQL UPDATE query with JOIN statements?This question explores how to update records in one table based on related data from another…
1 Answer · 810 Views · Answered ✓
How can you calculate a percentage using a SQL statement?This question explores how to use SQL queries to compute percentages from your data by…
1 Answer · 1.3K Views · Answered ✓
What does the "NOT IN" clause do in a MySQL query? How can you use "NOT IN" to filter out specific values from your query results?
1 Answer · 522 Views · Answered ✓
How do you create a .db database file from a .sql script? What steps or tools are needed to convert SQL commands into an actual database file?
1 Answer · 1.4K Views · Answered ✓
How can you create a temporary table using the CREATE statement in SQL Server? What syntax should you follow, and when is it useful to use temp…
1 Answer · 797 Views · Answered ✓
How can you change the name of a table using an SQL query? What is the correct syntax to rename a table in different SQL databases?
1 Answer · 1.1K Views · Answered ✓
How can I list all the tables in a SQLite database after attaching it using the ATTACH command? What SQL queries or methods help me view tables from…
1 Answer · 1.7K Views · Answered ✓
What does the WHERE ID IN (id1, id2, ..., idn) clause do, and how is it useful when querying large datasets? This technique lets you efficiently…
1 Answer · 1.3K Views · Answered ✓
How can you write an SQL query with multiple WHERE conditions? What is the correct way to combine several filtering criteria in a single SQL…
1 Answer · 2.5K Views · Answered ✓
Free tutorials and interview questions from industry experts — learn the skill, then get ready to prove it.
Step-by-step SQL Server guides from industry experts
Common SQL Server interview questions, answered
Guides, tips and career advice on SQL Server from JanBask experts.
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…
SQL Server How to Become a SQL Database Administrator?
How to become a sql database administrator In 2025, discover what these professionals do, explore how much they earn and learn…
SQL Server OLAP vs OLTP: Key Differences, Architectures, Performance & Real-World Examples
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.…
Pick another topic to find answers, interview questions, and real-world tips.