Part 1 of my Data Warehousing interview questions and answers, starting with the basics: what a data warehouse is and how it supports decision making.
SQL SERVER – Data Warehousing Interview Questions and Answers – Introduction
The start of my Data Warehousing Interview Questions and Answers series, beginning with the basics: what is data warehousing and why companies use it.
SQL SERVER – Convert Text to Numbers (Integer) – CAST and CONVERT
How to convert text to integer with CAST and CONVERT, whether they fail on alpha-numeric values (yes), and how to pull only the numbers from a string.
SQL SERVER – Definition, Comparison and Difference between HAVING and WHERE Clause
I asked every candidate the difference between HAVING and WHERE clause, and none got it right. HAVING filters groups, while WHERE filters individual rows.
SQL SERVER – Database Coding Standards and Guidelines Part 2
Database Coding Standards and Guidelines Part 2: skip SELECT *, use SET NOCOUNT ON, prefer CTEs over temp tables, avoid cursors, and more query tips.
SQL SERVER – Good, Better and Best Programming Techniques
My notes for a programmers meeting on Good, Better and Best Programming Techniques in SQL Server, plus a funny bug ticket about a client who got no email.
SQL Server Interview Questions and Answers Complete List Download
The SQL Server Interview Questions and Answers Complete List Download collects my six part series in one PDF, as many readers asked.