Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 2 years ago. Improve this question I have data in this order How can I sort this data in this order? Answer To do this requires a big assumption which is
Tag: sql
Why should we always close a connection to a database?
I was asked this question in an interview. Why is it important to close a database connection? Is it just good practice because it might be wasting resources or there is something more to it? Answer You already mentioned first reason: resource leaks. This would mean that the usage of memory, sockets and file descriptors on your system is constantly
SQL how to obtain two columns as a result of a two where condition in one statement
I’m enrolling in a Coursera course called SQL FOR DATA SCIENCE, offered by the University of California, Davis. I’m doing the last test and there is the next question based on a table of customer …
Join on multiple columns and in one of the integer columns join by choosing minimum difference
I got table t1 and i want to join it with table t2 below on columns a, b and c +———+———+———+ |a |b |c | +———+———+———+ |473200 |1 |1.-1-…
SQL Server XML Parsing Null Result
Hello I have procedure like below USE [DB] GO SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO ALTER PROCEDURE [dbo].[AdminTestSaveAnswer] @refQuestion xml AS BEGIN SET NOCOUNT ON; SELECT …
Extend WooCommerce product search to custom taxonomies and custom fields
I am creating advance woocommerce search and I want to add sku and product_tag and product_category in search query. Below I am using Enable custom taxonomies in WooCommerce product search answer code,…
Rolling sum for a column in mysql
I would like to get the rolling sum for the growth column for the following sample data which can be found here dbfiddle The output should look like, Growth RollingSum TMonth TYear 511 511 …
Best approach to index a PostgreSQL database with plain html content?
I have a database with a few million posts, each with a column “content” that contains the post content in plain HTML.
<a href="http://…
Mysql analyze table content
I forgotten the name of the SQL command to analyse the content of a table. The command I’m looking for shows me for each colum the min/max/avg length of the content. If I remember correctly it starts …
Postgresql Serial Daily Count of Records
I am trying to get a total count of records from 1st Jan till date, without skipping dates and returning 0 for dates that have no records. I have tried the following: orders is an example table and …