When using T-SQL with SQL Server, we can format numbers using various methods, depending on our desired format.
Below are four functions that can be used to format a number to two decimal places in SQL Server.
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Database Management Systems
3 Ways to Find Rows that Contain Lowercase Letters in SQLite
Here are three options for returning rows that contain lowercase characters in SQLite.
Continue readingMariaDB MINUS Operator Explained
In MariaDB, the MINUS operator returns distinct rows from the left input query that aren’t output by the right input query.
The MINUS operator was introduced in MariaDB 10.6.1 as a synonym for the EXCEPT operator for the purposes of compatibility with Oracle. Therefore, we can use MINUS and EXCEPT interchangeably (in MariaDB 10.6.1 and later).
4 Ways to Check for Duplicate Rows in SQL Server
Here are four methods you can use to find duplicate rows in SQL Server.
By “duplicate rows” I mean two or more rows that share exactly the same values across all columns.
Continue reading3 Ways to List All Stored Procedures that Reference a Table in PostgreSQL
Here are three examples of returning a list of stored procedures that reference a specific table in PostgreSQL.
Continue reading3 Ways to List all Triggers for a Given Table in PostgreSQL
Here are three options for listing out the triggers for a given table in PostgreSQL.
Continue readingMariaDB UNION Operator Explained
In MariaDB, the UNION operator combines the results from multiple SELECT statements into a single result set.
Return Rows that Only Contain Non-Alphanumeric Characters in SQLite
Here’s an example of returning rows that contain only non-alphanumeric characters in SQLite.
Non-alphanumeric characters include punctuation characters like !@#&()–[{}]:;',?/* and symbols like `~$^+=<>“, as well as whitespace characters like the space or tab characters.
MariaDB INTERSECT Operator Explained
In MariaDB, the INTERSECT operator intersects two queries and returns only those rows that are returned in both queries.
It returns all rows from the left SELECT result set that are also present in the right SELECT result set.
6 Ways to Select Duplicate Rows in SQLite
The following queries can be used to return duplicate rows in SQLite.
Here, the duplicate rows contain duplicate values across all columns, including the ID column.
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