sql - Optimal way to concatenate/aggregate strings - Stack Overflow
They have implimented STRING_AGG() in Azure SQL Database as well. That should provide the exact functionality originally requested in this post with native and built in support. @hrobky mentioned this previously as a SQL Server 2016 feature at the time.
sql server - SQL String functions - Stack Overflow
2014年2月16日 · SQL String functions. Ask Question Asked 10 years, 9 months ago. Modified 10 years, 9 months ago. Viewed ...
How to create a function SQL that returns a string from a table?
2017年8月19日 · Here is an example of a function with correct SQL Server syntax: create function FN_something ( @entrada char(50) -- should probably be `varchar(50)` rather than `char(50)` ) returns varchar(50) begin declare @saida varchar(50); select @saida = 'resultado: ' + num_notificacao + ';' + num_multa from table where field = @entrada; return @saida; end;
Use '=' or LIKE to compare strings in SQL? - Stack Overflow
2009年2月5日 · There's a couple of other tricks that Postgres offers for string matching (if that happens to be your DB): ILIKE, which is a case insensitive LIKE match: select * from people where name ilike 'JOHN' Matches: John; john; JOHN; And if you want to get really mad you can use regular expressions: select * from people where name ~ 'John.*' Matches ...
SQL Server: Make all UPPER case to Proper Case/Title Case
2015年10月26日 · Borrowed and improved on @Richard Sayakanit answer. This handles multiple words. Like his answer, this doesn't use any UDFs, only built-in functions (STRING_SPLIT and STRING_AGG) and it's pretty fast. STRING_AGG requires SQL Server 2017 but you can always use the STUFF/XML trick. Won't handle every exception but can work great for many ...
Grouped string aggregation / LISTAGG for SQL Server
2017年5月8日 · If it is SQL Server 2017 or SQL Server VNext, Azure SQL database you can use String_agg as below: SELECT make.CarMakeId, make.CarMake, CarModels = string_agg(model.CarModel, ', ') FROM CarModels model INNER JOIN CarMakes make ON model.CarMakeId = make.CarMakeId GROUP BY make.CarMakeId, make.CarMake Output:
String functions in SQL - Stack Overflow
2009年10月3日 · But one thing I would add is that this type of action screams to me to be put into a seperate SQL function so that it can be used elsewhere if needed. For instance, pass in the string to be trimmed, a prefix code and the number of …
How to use GROUP BY to concatenate strings in SQL Server?
Eight years later... Microsoft SQL Server vNext Database Engine has finally enhanced Transact-SQL to directly support grouped string concatenation. The Community Technical Preview version 1.0 added the STRING_AGG function and CTP 1.1 added the WITHIN GROUP clause for the STRING_AGG function.
Why is a string function in sql useful? - Stack Overflow
2017年3月31日 · String functions are useful for deriving data from simpler strings. In particular, the substring function is used toe extract part of a string. If you have a string which is complex, it may be necessary to break it up into smaller components.
sql - replace multiple values at the same time - in order to convert …
2014年4月22日 · Tested working (for my data sets), but I'm not a SQL guru, so YMMV. Also, since it just uses REPLACE() under the hood this handles Replacement with any size string, not just 1 char (as with @Arion's example). /* .SYNOPSIS FIND/REPLACE MULTIPLE VALUES FROM A STRING .DESCRIPTION Walk through the @FINDChars pattern, one character at a …