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What Counts For a DBA: Ego

Leaving aside, for a second, Freud’s psychoanalytical definitions, the term “ego” generally refers to a person’s sense of self, and their self-esteem. In casual usage, however, it usually appears in the adjectival form, “egotistical” (most often followed by “jerk”). You don’t need to be a jerk to be a DBA; humility is important. However, ego is important […]

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PostgreSQL HAVING,LIMIT and FETCH Clauses

Overview In this article, we will cover these PostgreSQL clauses with examples: HAVING, LIMIT and FETCH. In a previous article we discussed the WHERE, ORDER BY and GROUP BY  clauses. Click the link if you wish to learn about those clauses. HAVING Clause The HAVING clause works on grouped data returned by a GROUP BY. […]

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Question of the Day

BIT_COUNT II

In SQL Server 2025, I have a table (dbo.UserPermission) that contains this data:

UserID  UserPermissions
15
23
37
4       NULL
What is returned when I run this code:
select bit_count(UserPermissions) as PermissionCount
from dbo.UserPermission
where UserID = 4;

See possible answers