get the total count but exclude certain condition – Mysql
Hello I had this table: id | user_id | status 1 | 34 | x 2 | 35 | x 3 | 42 | x 4 | 42 | y My goal is to count the data with X status…
Can't install mysqlclient
pip install mysqlclient Collecting mysqlclient Using cached mysqlclient-2.1.1.tar.gz (88 kB) Preparing metadata (setup.py) .. done Building wheels for collected packages: mysqlclient Building wheel for mysqlclient (setup.py) .. error ERROR: Command errored out with exit status 1: command: 'c:usershpappdatalocalprogramspythonpython36python.exe' -u -c…
How to find out mysql field level charset?
I need to convert latin1 charset of a table to utf8. Quoting from mysql docs: The CONVERT TO operation converts column values between the original and named character sets. This is not what you want if you have a column…
Return result of several set operations on subqueries – Mysql
I am using MySql and running the following queries. (select CONCAT(RESOURCE, " AMB:", AMB) AS REC_1 from db.CRE where CONTENT = '183' and LEVEL = '99' EXCEPT select CONCAT(RESOURCE, " AMB:", AMB) AS REC_1 from db.CRE where CONTENT = '182'…
How to clear the database cache in mysql 8 innodb
I am attempting to run the same query multiple times on the same mysql 8 database and table. I need to carry out experiments to determine if tweaking the query and or table itself improves performance. However after the first…
Aliases in MySQL and do maths
I need to workout the effectiveness of a user to display in a report, i complied the following statement SELECT COUNT(`call_id`) AS logged FROM `tbl_calls` WHERE `user_id_attended_by` = 24 AND YEAR(`date_ack_by_tech`) = YEAR(CURRENT_DATE - INTERVAL 1 YEAR) AND MONTH(`date_ack_by_tech`) =…
Why are there are two rows in MariaDB database violating unique constraint? – Mysql
I have written an application in Javascript which inserts data into two tables via a connection to a MariaDB server. There should be a 1:1 correspondance between the rows in these tables when first running the application. One table stores…
Print data grid view skips the first row – Mysql
I have created a print preview for the data grid view that I want to print. The code works fine but there is slight problem Problem Screenshot: In the data grid view row, the ID 1 is missing, it always…
Writing to sql database with pandas – Mysql
Confused. Trying to build a scraper of UK news in python. import feedparser import pandas as pd def poll_rss(rss_url): feed = feedparser.parse(rss_url) for entry in feed.entries: print("Title:", entry.title) print("Description:", entry.description) print("n") def poll_rss(rss_url): feed = feedparser.parse(rss_url) for entry in feed.entries:…
sorting multiple fields of the same table – Mysql
I have a sorting function that, according to the specified table, should filter the data in the order I need.. public function getOrderBy(): array { $sortOrder = in_array( $this->fieldSort, ['price_desc'], true ) ? SORT_DESC : SORT_ASC; $by = in_array( $this->fieldSort,…