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One way to do this is to limit the sub-query to return the first result only using a TOP clause. You need to join it to the main table as well: SELECT e.ID, e.Name, e.Boss, (SELECT top 1 Name FROM Employees b where b.ID = e.Boss) as BossName FROM Employees e
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... carrier_entity.name as carrier_name, carrier.carrier_stuff -- additional carrier fields... from entity as customer_entity.
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.
27 lip 2018 · All it is doing is taking a column value i.e. birth_year and replacing it with age i.e. getdate() - birth_year. SELECT id, birth_month, birth_year. INTO #birth_date. FROM table_name. WHERE birth_year IS NOT NULL. UPDATE table_name. SET birth_year = ( YEAR(GETDATE()) - bd.birth_year ) FROM #birth_date bd.
To filter data by multiple conditions in a WHERE clause, use the AND operator to connect the conditions. Here’s what this looks like for two conditions: WHERE condition1 AND condition2. In our example, condition1 is dept = 'Finance' and condition2 is salary > 4000.
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,
15 kwi 2013 · If I have a table with 20(or more) column names in and I want to select All of them, but one column of those 20 columns is a date column and you would like to change the format of that column, how would you do that?
