Why do we use group by 1 2 in SQL query?
In SQL queries, we do use Group by clause to apply aggregate functions. But what is the purpose behind using numeric value instead of column name…
1 Answer · 1.1K Views · Answered ✓
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In SQL queries, we do use Group by clause to apply aggregate functions. But what is the purpose behind using numeric value instead of column name…
1 Answer · 1.1K Views · Answered ✓
I was just studying about the 3NF and the BCNF and then encountered a statement that: 3NF ensures lossless decomposition while BCNF does not. How can…
1 Answer · 1.2K Views · Answered ✓
How do I give a user account in PostgreSQL the ability to create and drop databases? Is there a way to do this with GRANT?
1 Answer · 887 Views · Answered ✓
I currently have one RDS instance, db.t3.medium running Aurora MySQL.Due to increased workload (expected), the CPU is, on average, running just over…
1 Answer · 822 Views · Answered ✓
I have come across two different definitions of weak entities, which may sometimes be contradictory.1) Weak entity is an entity which cannot exist…
1 Answer · 2.5K Views · Answered ✓
I can access my databases through SQL Server Management Studio (SSMS) by using my Windows account no problem.I have two issues though: I want to…
1 Answer · 1.6K Views · Answered ✓
I downloaded and installed PostgreSQL and PostGIS from KyngChaos for my OS X 10.10 install. When I run psql I get, bash: psql: command not found…
1 Answer · 2.2K Views · Answered ✓
My syntax keeps giving me the below error, which is blowing my mind as I think (and please kindly correct me if I am incorrect), I have declared and…
3 Answers · 13.2K Views · Answered ✓
Is there a way to find the differences in two SQL Server databases (schema only). One is local and the second is at a customer's site. We are…
1 Answer · 1.3K Views · Answered ✓
The postgres truncate table statement has an additional option RESTART IDENTITY which resets the sequences associated with the table columns.
1 Answer · 3.6K Views · Answered ✓
rror: Code 1054. Unknown column 'U2.id_naslov' in 'field list' gets thrown on this simple query in MySQL Workbench:UPDATE krneki_1 AS U1, krneki_2 AS…
2 Answers · 14.4K Views · Answered ✓
To select distinct on one column & any in another column -
2 Answers · 4.6K Views · Answered ✓
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