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Editorial Team
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Asked: 2026-05-30T14:19:11+00:00

Query: SELECT TOP (1) ‘-1’ AS hrempid, ‘All employees’ AS fullname FROM employee UNION

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Query:

SELECT TOP (1) '-1' AS hrempid, 'All employees' AS fullname
FROM employee
UNION
SELECT fullname, hrempid
FROM employee AS employee1 
order by fullname

Error:
Error converting data type varchar to bigint.

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1 Answer

  1. Editorial Team

    You have the columns in the wrong order after the union. Here is corrected version:

    SELECT   TOP (1) '-1' AS hrempid, 'All employees' AS fullname
FROM     employee
UNION
SELECT   hrempid, fullname
FROM     employee AS employee1 
ORDER BY fullname

    And better yet, use something like this:

    SELECT   CAST(-1 AS BIGINT) AS hrempid, 'All employees' AS fullname
UNION ALL
SELECT   hrempid, fullname
FROM     employee AS employee1 
ORDER BY fullname
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