sql-function Questions

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I would like to know what's the best way to register a custom SQL function with JPA/Hibernate. Do I have to go through extending the MysqlInnodb dialect or is there a better way? Can anyone pleas...
Extinct asked 10/9, 2012 at 7:11

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What's the difference between table-valued functions and views? Is there something you can do with 1 that's hard or impossible to do with the other? Or does the difference lie in efficiency?
Arroyo asked 10/2, 2011 at 16:54

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I'm looking at MySQL procedures and functions. What is the real difference? They seem to be similar, but a function has more limitations. I'm likely wrong, but it seems a procedure can do everythin...
Lalitta asked 19/9, 2010 at 1:43

3

I am trying to create a MySQL function using phpMyAdmin and getting this error. #1415 - Not allowed to return a result set from a function The function code is as below: DELIMITER $$ CREATE FUN...
Corene asked 9/8, 2012 at 9:22

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I am working with existing project, and I am found a sql query with sql-function like SELECT * FROM money WHERE amount = float_convert(0.1); This Query is Working Properly, But I want to see and e...
Yu asked 6/9, 2014 at 6:38

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I have all the SQL files checked into a repo on Azure devops. I have naming convention that allows me to know which .sql files are used by other .sql files (ex. file creates a view that is used by...
Parachute asked 8/6, 2020 at 12:33

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I have the following JSON data : set @json = N'{ "Book":{ "IssueDate":"02-15-2019" , "Detail":{ "Type":"Any Type" , "Author":{ "Name":"Annie" , "Sex":"Female" } } , "Chapter":[ { "Sect...
Greig asked 15/2, 2019 at 7:1

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How can I achieve the equivalents of SQL's IN and NOT IN? I have a list with the required values. Here's the scenario: df = pd.DataFrame({'country': ['US', 'UK', 'Germany', 'China']}) countries_to_...
Bombay asked 13/11, 2013 at 17:11

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I am passing a simple query where I am searching for specific rows where OrderID is an even number SELECT * FROM Orders WHERE mod(OrderID,2) = 0; Error : Syntax error (missing operator) in ...
Unfold asked 31/1, 2016 at 6:20

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I am trying to concatenate many columns and separating it with a comma as below: Column ------ abc bcd bgd abc Expected output: abc,bcd,bgd I am using this code: CREATE FUNCTION concatinate(@P...
Tridentine asked 29/8, 2015 at 11:53

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I need to check when function was changed last time. I know how to check creation date (it is in function properties window in SQL Server Management Studio). I found that in SQL Server 2000 it wasn...

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I need to find out if a function exists in a database, so that I can drop it and create it again. It should basically be something like the following code that I use for stored procedures: IF EXIST...
Oneeyed asked 24/3, 2011 at 12:28

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I need to create a function in SQL server that returns daylight savings time start datetime and daylight savings time end datetime. I've come across a few examples on the web, however they all are...
Raffo asked 1/11, 2013 at 18:20

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Why can we not execute a stored procedure inside a function when the opposite is possible?
Brundisium asked 24/5, 2010 at 11:3

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This is based on a similar question How to Replace Multiple Characters in Access SQL? I wrote this since sql server 2005 seems to have a limit on replace() function to 19 replacements inside a wh...
Blaisdell asked 16/10, 2009 at 19:38

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I'm getting the below error for the given function. Msg 2010, Level 16, State 1, Procedure GetTableFromDelimitedValues, Line 2 Cannot perform alter on 'dbo.GetTableFromDelimitedValues' because it ...

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I stumbled upon a slump in performance when a simple SQL function is declared STRICT while answering this question. For demonstration, I created two variants of a function ordering two elements of ...

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I have a simple PostgreSQL function which I aspect should return values into separate columns -115 and 101000005458E6258... but it returns one column where two values are separated by a comma...
Marissamarist asked 25/6, 2020 at 14:7

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I am trying to use result of function execution in where clause but with no success: SELECT clinics.*, distance_between_objects(1, id, 7, 3) AS dist FROM clinics WHERE dist<=1; gives me:Colum...
Alten asked 23/11, 2017 at 12:49

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I need to try and find a free seat on a plane, and then reserve that seat. I need to return both a value to indicate success or not as well as a seat number. By looking around I've found that func...
Sangria asked 3/5, 2014 at 17:21

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Why do Scalar-valued functions seem to cause queries to run cumulatively slower the more times in succession that they are used? I have this table that was built with data purchased from a 3rd par...
Deina asked 28/4, 2009 at 22:1

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Is it possible to use the LEAD or LAG SQL functions from C#? My preference of method is: Linq to SQL Entity Framework Dynamic Linq SQLFunctions class Manual TSQL via a SQLCommand I know it can...
Ardennes asked 23/5, 2016 at 7:19

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In the ETL process, I receive a varchar field, and the length (of the value) is changed from row to row. I need to keep 5 symbols from the right side of the string. It means that I need to cut the ...
Grovergroves asked 16/5, 2019 at 7:25

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When should I use a function rather than a stored procedure in SQL, and vice versa? What is the purpose of each?
Citole asked 24/7, 2009 at 19:40

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In PostgreSQL, what is the difference between a prepared statement and a SQL or PL/pgSQL function, in terms of their purposes, advantages and disadvantages? When shall we use which? In this very s...

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