MySQL has a GROUP_CONCAT() function that enables us to return columns from a query as a delimited list.
It returns a string result with the concatenated non-NULL values from a group.
LISTAGG() Function in Oracle
In Oracle, the LISTAGG() function enables us to combine data from multiple rows in to a single row.
We have the option of specifying a separator (such as a comma). We can also order the results produced by the LISTAGG() function, and more.
MariaDB GROUP_CONCAT()
MariaDB has a GROUP_CONCAT() function that enables us to return columns from a query as a delimited list.
STRING_AGG() Function in PostgreSQL
In PostgreSQL, we can use the STRING_AGG() function to return columns from a query as a delimited list.
How POSITION() Works in PostgreSQL
PostgreSQL has a POSITION() function that returns the first starting index of a specified substring within a string.
If the substring doesn’t exist in the string, then zero is returned.
How to Format Numbers with Leading Zeros in SQLite
In SQLite, we can use the PRINTF() function or FORMAT() function to format numbers with leading zeros.
How to Add Leading & Trailing Zeros in Azure SQL Edge
Azure SQL Edge uses a limited version of the SQL Server Database Engine. One of the limitations of Azure SQL Edge, is that it doesn’t currently support CLR-dependent T-SQL functions, such as the FORMAT() function.
This can be a problem when trying to format numbers.
However, there are often ways around such limitations. Here are examples of how we can pad numbers with leading and trailing zeros in SQL Edge.