SQL GROUP By and the "Column 'name' is invalid in the select list ...
Jan 1, 2016 · You can only list columns which are in the GROUP BY list, or in a function which returns a single value for a range of rows - called an "Aggregate function" because it aggregates (or combines) …
SQL Queries to Manage Hierarchical or Parent-child ... - CodeProject
Sep 16, 2014 · Download source - 35.7 KB Introduction Here, in this post, we will try to manage data with hierarchical relation or parent-child relation of a specific table in SQL server. Our special …
Simplifying Dynamic SQL Queries with Dapper - CodeProject
Dec 9, 2023 · What is Dapper.SimpleSqlBuilder? Dapper.SimpleSqlBuilder is a library that enhances the Dapper experience by providing a simple, efficient, and fluent way to build both static and dynamic …
Making OUTER and CROSS APPLY work for you - CodeProject
Jun 16, 2013 · OUTER and CROSS APPLY are unique to SQL Server so this article is intended for anybody using SQL in a SQL Server environment. It will also cover many examples of where you can …
Decrypt SQL Server Objects - CodeProject
Feb 5, 2016 · Decrypt SQL Server Objects Install and run the Optillect Decryptor tool by clicking on the Direct Download Link on this site. Once this is installed, create a dedicated administrator connection …
Execute SQL Query on Mutiple SQL Servers or Databases ... - CodeProject
Jun 3, 2015 · In this blog we would learn how to execute a SQL Query on multiple databases of single DB Server or on a single Database on multiple DB Servers.
Counting Consecutive Dates Using SQL - CodeProject
Feb 17, 2013 · How to count consecutive dates using SQLCondition: If same type of leave is taken continuously, it should be merged in one row mentioning from_date to to_date. Answer When I saw …
LINQ Group By with NULL Database Values - CodeProject
Jul 5, 2010 · LINQ is fantastic for the ability to write queries that express intent much more clearly than the same SQL, or structured code. One problem that I have run into though is handling NULL …
Top 10 steps to optimize data access in SQL Server: Part ... - CodeProject
Nov 8, 2009 · File group Database files are logically grouped for better performance and improved administration on large databases. When a new SQL Server database is created, the primary file …
Take maximum advantage of Grouping Sets, Rollup, Cube and Pivoting
Dec 5, 2016 · The article explains how to get simple, practical and powerful SQL Queries using Grouping Sets, Rollup, Cube and Pivoting by means of detailed examples.