13 Postgresql - concat_ws like function? 2 concat in postgresql 1 Postgresql string concatenation: error: syntax error at or near "msg" 4 Can't use concat function in Postgres (9.3) index 1 Concat with sql function 8 Concatenate in PostgreSQL 1 Postgresql 9.6 concatenation of ...
SELECT u.client_code, max(d.created_at) as last_document_created_at, u.brand_id, t.name as template_name, count(d) FROM users u INNER JOIN documents d ON u.id = d.user_id INNER JOIN templates t ON t.id = d.template_id GROUP BY 1, 3, 4 Which returns information like this:...
PostgreSQL is a robust object-relational database management system that offers numerous functions and operators for the built-in data types. This enables developers to focus on solving more significant problems while relieving them from simpler tasks. One particular category of built-in functions is ...
The first, easiest and most common operation, in my opinion, is the concatenation of two (or more) strings, so let's see various methods to do so! SQL Server In order to concatenate strings with T-SQL in SQL Server there are basically two methods, the first is to use the concatenate ...
With plain concatenation (||), one NULL field would make the whole pattern NULL. It was introduced with Postgres 9.1. The added WHERE clause prevents empty updates. This enhances performance a lot if many rows wouldn't change anyway. Share Improve this answer Follow edited May 15, 2013 a...
In PostgreSQL the concatenation operator is the same as in Oracle: select "FirstName"||' '||"LastName" as "CustomerName" from "Customer" And in PostgreSQL, CONCAT works as in SQL Server: select concat("FirstName",' ',"LastName") as "CustomerName" ...
It looks like the only usages ofWITHIN GROUPsyntax in Oracle is to specify an ordering, so the PostgreSQL way would seem to be way to go as it is more concise (and the extra syntax from Oracle doesn't aid in clarity). The only weirdness from a syntax perspective is that there is no...
The PostgreSQL STRING_AGG() returns us the result in string type. The STRING_AGG() is generally used with the GROUP BY clause like we use other PostgreSQL aggregate functions such as MIN(), MAX(), AVG(), SUM(), COUNT(), etc. ...
This page presents a series of example commands that hopefully illustrate the use of various PostgreSQL string functions. A link to the official documentation can be found at the bottom of the page.1. String FunctionsString concatenationThe concatenation operator || can be used in SELECTs:...
The simplest method I have found to accomplish this is to swap out the string concatenation operator for the string concatenation function concat(). For some reason the former apparently coerces the entire result to NULL if one operand is null, as opposed to the latter which effectively casts ...