Sql select same column twice different criteria

You can convert various elements in a single column to individual fields by using joins, the fields being related by some common factor that would allow you to correlate them. For example, in a table where pets are listed by owner. FROM ANIMALS as A INNER JOIN ANIMALS AS B. SQL - Selecting same column twice but with different conditions.

But it gives me an error: Subquery returned more than value.

This is not permitted when the subquery follows =, ! Retrieve same column twice with different. How to retrieve same column twice with. FROM table_name a INNER JOIN table_name b on (a.event_id = b.event_id and b.pair =a.versus and b.versus=a.pair and a.pairb.pair) Side notes.

It makes sense to have a surrogate primary key column in the table. So it would show the planned qty days back and the planned qty going forward for each material. Multiple selects on same column , same table, one query.

Microsoft SQL Server Forums on Bytes. If SQL Server had to pick an order to update the columns, this flipping of data would fail. Instea it sets the LastName to whatever the FirstName happens to be before the update runs.

You can reference a column in an UPDATE statement as many times as you like, but you can only set its value once. SELECT date , employee_id , i. Select two aggregate functions on the same column using different criteria - performance. The database in question is a service database where a user hires a service. EXCEL: SUMIFS – DEMYSTIFIED. If you need to sum up a range of numbers you just click the AutoSum button and you are done.

Working with Sum just made our lives just that more convenient. So you are ready for the next steps with SUM and are looking for a sum of values based on a condition. Re: Referencing the Same Field Twice in a Query. That way, the WHERE clause can go against individual instances of the table, matching the Station ID fields with the table. As a result, in the Select clause, had to use the appropriate Alias name in for the Starting Station Name vs the Ending Station Name.

I want to grab a value from a table into two different columns for different values from the same table. Val FROM MyTable a, MyTable b WHERE a.

The UPDATE statement can’t pick a winner between the two instructions because they execute at the same time. It’s like changing the tire on a car and telling it to use two different tires on the same wheel. What if we use the column twice but in two different ways: Once as a reference, the other as the column to update? Alias SQL example: Just join the Users table twice , but you need to use a different alias each time you reference the same table.

Fill a sample table with a few million rows and time the queries. Next, we will populate our tables with the T- SQL below. The T- SQL query to accomplish our task appears in the box below. Anganbadi_ID = Anganbadi_Master. When I run a relatively simple query like this on my dataset, it works - it just takes a long time.

In the Criteria pane, add the column to search. In the Filter column for the data column you just adde specify the first condition. Since the comma and semi-colon represent column and row separators respectively in Excel, you are effectively constructing a 2-by-matrix of the four permutations to your two criteria , and then summing these, e.