Search results
You can simply use the same column multiple times and add for each of them and as and use different name. SELECT column1 as c1, column1 as c2, column1 as c3 FROM TABLE1 WHERE ....
and I would like to retrieve the NAME twice like this: NAME | PARENT NAME. If it is possible to go three levels deep but with same 2-column table like this: result table. NAME | PARENT NAME first | NULL or EMPTY or this line the not showing at all second | first third | second.
16 lis 2014 · I am being asked to list the Employees Names, their Locations and their Manager's Name. The Manager is (of course) an employee Meaning I'm goign to have to select from Name twice. So how can I make a query where I can display both the Name of both the Employee and the manager.
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.
30 lis 2013 · SELECT count(*), article_title FROM articles GROUP BY article_title HAVING COUNT(*) > 1; Adding columns to the SELECT and GROUP BY clauses allow you to locate duplicates based on a composite key of multiple columns.
MySQL permits duplicate column names. That is, there can be more than one select_expr with the same name. This is an extension to standard SQL. Because MySQL also permits GROUP BY and HAVING to refer to select_expr values, this can result in an ambiguity:
The SELECT DISTINCT statement is used to return only distinct (different) values. Inside a table, a column often contains many duplicate values; and sometimes you only want to list the different (distinct) values.
