Here is a simple function to compare datepart of datetime fields , (no need to say ignores hour t,min,sec ... ) isDateMatch(@date1,@date2 ) retruns 1 if the datepart matches else returns 0regardsjohn
2007-03-21 (first published: 2007-02-24)
203 reads
This simple script (ran from the master database) in Query Analyser removes all the requirements of collating currently connected spids to a database and the need to systematically open a cursor to kill each spid individually by simply placing the database offline, then immediately online.
2007-03-16 (first published: 2007-02-13)
372 reads
CREATE FUNCTION [dbo].[GetDateTimeOfIsoWeek](@WeekYearNumber int, @DayNumber int)RETURNS datetime
2007-03-15 (first published: 2007-02-13)
134 reads
SQL 2005 user defined function to convert a string to proper case (title case).Flexible handling of delimiters and apostrophes to cater for words like "hasn't" and also names like "O'Reilly" and "d'Angelo".Mac and Mc surnames are handled generically, with some rules and exceptions which may need to be extended. Since McIntyre and Mcintyre are both […]
2007-03-14 (first published: 2007-02-14)
1,866 reads
First the SP_TABLECOMPARE was used from the site and all credit must go to the author (greate script). This script is for the creation of an audit trial. It is generic and can be used on any sql database. It deals with legasy naming conventions as well. The script creates the audit tables and triggers. […]
2007-03-13 (first published: 2007-02-15)
1,350 reads
This tool scripts out SQL Server 2000/2005 database objects to individual files in a manner which mimics Microsoft's Visual Studio for Database Professionals [aka, "Data Dude"]. These files can then be placed under proper source management control. An entire database is scripted in one call.Alternatively, it provides a way to simply document the contents of […]
2007-03-12 (first published: 2007-02-15)
2,281 reads
2007-03-07 (first published: 2003-06-30)
426 reads
There are many times you have to deploy a common code in all of your SQL Servers. I am sure there might be thousands of way to do this, but here is how I do it and it works great. Good thing is - you can either pass SQL Statement or a SQL script (in […]
2007-03-05 (first published: 2005-05-26)
827 reads
To provide data analysis you may need to perform some basic trend analysis. For example, if you want to identify the percentage of change in the number of orders received from one month to the next. The challenge to providing that on the fly is the change can be either an increase or a decrease, […]
2007-03-02 (first published: 2007-01-25)
6,540 reads
I find myself refacoring an existing database which has some inefficient code, like cursors in stored procedures and triggers ...Wanting to figure out which objects contained this "poor" code, I made myself a little script to list all the objects which contain a search string.Just change the value that @search is set to and run […]
2007-03-01 (first published: 2007-02-07)
1,194 reads
If you've ever loaded a 2 GB CSV into pandas just to run a...
By James Serra
What problem is Fabric Ontology trying to solve? For years, most data conversations have...
By Steve Jones
Recently I ran across some code that used a lot of QUOTENAME() calls. A...
Comments posted to this topic are about the item The New Software Team
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Comments posted to this topic are about the item The string_agg function
We create the following table and then insert some records in it:
create table t1 ( id int primary key, category char(1) not null, product varchar(50) ); insert into t1 values (1, 'A', 'Product 1'), (2, 'A', 'Product 2'), (3, 'A', 'Product 3'), (4, 'B', 'Product 4'), (5, 'B', 'Product 5');What happens if we execute the following query in both Sql Server and PostgreSQL?
select id,
category,
string_agg(product, ';')
over (partition by category order by id
rows between unbounded preceding and unbounded following) as stragg
from t1; See possible answers