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SELECT ID, Name, Boss, (SELECT Name FROM Employees WHERE ID IN (SELECT Boss FROM Employees)) FROM Employees But it gives me an error: "Subquery returned more than 1 value.
17 sty 2013 · Join entity twice and give the name column aliases. Remove the last join if additional carrier fields are not needed. select customer_entity.name as customer_name, customer.credit, -- additional customer fields...
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): SELECT a.myVal, b.myVal. FROM MyTable a, MyTable b. WHERE.
24 kwi 2023 · This SQL tutorial illustrates some of the most common techniques for searching between two date values in SQL, including using the BETWEEN operator, the greater than (>) and less than (<) operators, and the DATEPART() function.
28 maj 2020 · I have a simple select statement from one table that lists the same numeric column (TRANAMT) twice. If the number is positive (>0) I want it to show in the first reference of TRANAMT. If the number is negative (<0) I want it to should in the next reference of TRANAMT.
24 lut 2021 · I have the following join statement, which shows all the columns, and shows the Secretary's name and number, as well as the Manager Number , but I can't get the Manager Name to show up, or not repeat the same info as Secretary Name. What I have so far: SELECT. SECRETARY.SECRETARY_NUMBER, SECRETARY.EMPLOYEE_NUMBER AS SECRETARY_EMPLOYEE,
13 wrz 2018 · What if we use the column twice but in two different ways: Once as a reference, the other as the column to update? UPDATE Monsters SET LastName = FirstName, FirstName = NULL; Will SQL Server update the FirstName to null, then update the LastName to be the null FirstName?
