If you’ve ever had to format dates and times in SQL, you’ve probably come across one of the most jarring realities of working across platforms: every major RDBMS does it differently and sometimes confusingly. What’s a TO_CHAR() in Oracle becomes FORMAT() or CONVERT() in SQL Server, and its sort of the same in PostgreSQL… but […]
2025-07-11
165 reads
Learn about identity column sequence gaps and changing an existing column to an identity column in SQL Server, Oracle and PostgreSQL.
2022-01-19
In this article we look at how to use string functions to concatenate, replace, trim and get substrings in SQL Server, Oracle and PostgreSQL.
2021-10-25
Learn about the differences and similarities when deleting data from SQL Server, Oracle and PostgreSQL with the several examples in this article.
2021-03-16
In this article we look at the different SQL syntax you need to use when updating data when joining tables for SQL Server, Oracle and PostgreSQL.
2021-01-29
Of course it seems a great idea to have your application on all the main mobile platforms as well as on the desktop. However, as Arkadiusz Pachucy knows all too well, this can ultimately leave you with a full-scale maintenance nightmare. In this article he looks at whether technologies like PhoneGap/Cordova or Adobe Air could be the perfect compromise - and if so, what frameworks to use.
2015-08-24
3,088 reads
By gbargsley
In SQL Server environments where transactional replication runs alongside Always On Availability Groups (AGs),...
Disable the sa login in SQL Server (and sleep better)If you run SQL Server...
By Chris Yates
Change is inevitable. What separates thriving organizations from those that falter is not the...
Comments posted to this topic are about the item Create an HTML Report on...
Comments posted to this topic are about the item Be Wary of Data
Comments posted to this topic are about the item Locking Hierarchies
You have a table [dbo].[orders] without a Clustered Index (Heap). The table does not have any other nonclustered indexes! You rund the following command in Read Committed Isolation Level:
SELECTo_orderdate,
o_orderkey,
o_custkey,
o_storekey
FROMdbo.orders
WHEREo_orderkey = 3877;