Aggregate Performance Question
Which approach should I generally take? In this example, I'm keeping it simple, but imagine 20 calculated columns in which I keep summing the same values repeatedly, just in different combinations. Or...
View Articlefinding SQL duplicates based on different parameters
Hi, I need to write a query (or a series of queries) that will allow me to find when two clients are living in the same house. The data looks like the dataset (see sample dataset below).The first t
View Articlefind all variations of code assignment
We have orders with at least one code assigned to them. I need to find out all possible variations of those code assignments and count of orders with those variations.I have come up with the following...
View Articlewith Execute as
Hi Have an app that saves its internal reports (the SQL) in a table tblReports.I would like to make these queries available to outside apps e.g. EXcel so I wrote a simplified version of SP:
View ArticleDummy_val
Occasionally, I see a query submitted from Entity Framework with 'Dummy_VAL' in the where clause, like WHERE [Extent1].[SiteId] = 'DUMMY_VAL' - - - What is Dummy_VAL and how does sql interpret it?
View ArticleClustered Index Update vs. Primary Key Index Update
Is there any kind of general rule or guidance on which kind of update is faster? I'm trying to figure out which is the better way to go in a scenario where the table in question has a primary key...
View ArticleExtract columns from Json array
Hi Everyone,Does anyone know or suggest a way to extract column information from the Json array. We are still using sql 2014 so jsonopen is not supported. I am trying to work through the same example...
View Articlecreate table from select
What's the correct syntax?[code language="sql"]CREATE TABLE Title2 AS SELECT * FROM Title[/code]Msg 156, Level 15, State 1, Line 2Incorrect syntax near the keyword 'SELECT'.
View ArticleTrying to select both "paths" through data
I'm working with one of the developers, he has an application which logs the "path" taken by a process. The process can take multiple parallel paths as well as loop back to previous steps. What he's...
View ArticleDie whitespace, DIE !!
Hi all, Trying to delete some white spacebar as follows...[code language="sql"] /****** Object: Table [dbo].[ranks] Sc
View Articleupdate table: PK or unique idx?
Hi,There's this table with 300000000 rows and about 40 columns the pk consists of three fields massive updates are made on this table, for example:update <all fields except those of pk> where...
View ArticleHow to spread an invoice tax across invoice lines without loosing rounded...
I have a view, which shows Invoice Details table. This view is used to print invoices to the customers. In my case each record of Invoice Details is a passenger, so for three passengers, as in my...
View ArticleOracle's ROWTYPE equivalent in Sql Server 2014
I appreciate ROWTYPE equivalent didn't exist in SQL Server versions prior 2014 and I could find no information re SQL 2014 eitherCan one advise, please? Perhaps there is some close alternative in 2014?...
View ArticleRemoving HTML tags
I've read many pages on the web about doing this and many come back to this page:https://www.sqlservercentral.com/Forums/1197668/Strip-HTML-TagsI have a SQL
View ArticleGROUP BY
Hi All,i won't following output.find attachment for same.multiple row of columns.please suggest.regards santosh
View ArticleJoin on a substring value
One table has a Supplier Code, which is always 5 Alpha-Numeric.I need to join on a table where that Supplier code is embedded in a string.the string is always formatted as such:XXXXXXXX-Supplier-ZZZZ...
View ArticleMERGE vs UPDATE
GM SSC,I have been on several blogs researching about MERGE vs UPDATE. Which is more effective? I have read some blogs that say "don't believe the hype" about MERGE. It's slow and bulky. I have read...
View Articleusing wildcards in and and an IN in a Where clause
I have 500 strings that i need to do a wildcard on.example: PARTNUM LIKE '%abcde%'but i have to find 500 different PartNums.Obviosly i can't do IN ('%abcde%','%rthyg%','%UYTR%')How can i search for...
View ArticleFriday Fun - Excel Formula to SQL Functions
I recently found a nifty Excel Formula that worked out if a datetime was UTC or BST (British Summer time) and adjusted the input accordingly to output UTCHere's the formula, where C3 contains the date...
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