Optimizing Email Address Checks in SQL Server Queries Without Table Scans

SQL Server Percentage Change Calculation: Using Common Table Expressions (CTEs) and LEFT JOIN

Using SQL Server String Functions to Search for a Specific String within an Array of Strings

Total Distinct Interruption Time Calculation for Each Project

Identifying Consecutive Dates Using Gaps-And-Islands Approach in MS SQL

Escaping Common Table Expressions (CTEs) Without Using the `WITH` Keyword

SQL Server's REPLACE Function Fails Multiple Replacements: A Custom Solution to Fix It

The provided text appears to be a comprehensive guide for SQL and database management, covering various topics such as best practices, common errors, and optimization techniques. It includes explanations of different SQL syntax elements, examples of correct and incorrect queries, and guidelines for improving database performance.

Understanding Variable Control in SQL WHERE Statements: A Guide to Boolean Logic

Understanding Table Names without Schemas: Mastering SQL Server's PARSENAME Function