The closest approach I can think of is NULLIF: SELECT ISNULL(NULLIF(O.ShipName, C.CompanyName), 1), O.ShipName, C.CompanyName, O.OrderId FROM [Northwind].[dbo].[Orders] O INNER JOIN [Northwind].[dbo].[Customers] C ON C.CustomerId = O.CustomerId GO NULLIF returns the first expression if the two expressions are not equal.

Mar 11, 2010 · I need a query that could help me to compare columns in two tables. I mean not the data in rows, I need to compare the columns itself to figure out, what changes in table structure I've missed. What db objects do you want to compare only columns or columns and constraints? Realy it is a big script. :) What version sql server do you use?

Apr 28, 2022 · In this, we will understand overview of SQL query for required operation to perform How to compare columns in two different tables in SQL. We will understand each concept with the help of examples.

To compare one column of a table to a column of another table, please do the following. It looks OK, except you probably want to switch the order around in your where: Parentheses also would have fixed the issue. With Google BigQuery: See similar questions with these tags.

Dec 20, 2024 · In SQL, comparing rows and columns in the same table is a common task for data analysis, identifying relationships, and calculating differences. By using techniques like self-joins and conditional queries, we can extract meaningful insights from a single table.

Mar 31, 2023 · In SQL, problems require us to compare two columns for equality to achieve certain desired results. This can be achieved through the use of the = (equal to) operator between 2 columns names to be compared. For this article, we will be using the Microsoft SQL Server as our database. Syntax: SELECT * FROM TABLE_NAME WHERE COLUMN1_NAME=COLUMN2_NAME;

Mar 3, 2015 · Pay particular attention to all the comparisons that were being performed: MERGE [dbo]. [The_Table] USING ( SELECT [Account_No], -- rest of columns here FROM [#The_TableStaging] ) b -- the primary keys on the table ON b. [Account_No] = a. [Account_No] AND b. [Transaction_Id] = a.

Feb 10, 2012 · What's an easy way to show any unmatched rows from each table just like the example below, comparing every column? Assume there are 30 columns in the tables, many of which are NULLable.

Oct 21, 2021 · With a LEFT JOIN we can compare values of specific columns that are not common between two tables. For example, with this SELECT statement: The result set from …

I want to grab a value from a table into two different columns for different values from the same table. Use this query as an example (notice how the select is on the same table aliased as 2 different tables): a.otherVal = 100 AND. b.otherVal = 200 AND. a.id = b.id.