I have to retrieve a list of postings, by one or more category IDs. I do not want to have duplicate postings in my results. I'm only interested in responses that directly relate, or can draw relations with MySQL 8…
I've noticed that full text searches in MySQL do not seem to speed up when reducing the search pool with additional where clauses or joins. For example: SELECT * FROM `blog_posts` WHERE `id` = 1 AND MATCH (post_body) AGAINST ('+mango…
here i need an help like how to optimize this union all query the table has index for where clause column but it's not picking it up and i even tried with force index none of that works any better…
In my laravel project I am currently doing some testing with database seeders to check the performance with many database entries. In my project I have a Model FlightView using a SQL view as database by doing protected $table =…
Edit: EXPLAIN result for the first two queries when using src_cus_lang: EXPLAIN result for the last two queries when using cust_lang_src: Original post: I'm using MySQL and have a table as follows: CREATE TABLE tm( id INT AUTO_INCREMENT PRIMARY KEY,…
In the shared plan index scan cost is very high (cost=0.56..696715.50 But Limit (cost=0.56..224.59 is very low and so on result cost Result (cost=224.59..224.60 rows=1 width=8) why it is so? Right now I will consider this query harmless as it…
can someone help me make it simple and fast? select k1.sto, k1.mm,k1.dd, k1.yy, k1.sto_name, k1.trannum, count(k2.barcode) from trans012020 as k1 , trans012020 as k2 where k1.barcode=123456789 and k1.mm=k2.mm and k1.dd=k2.dd and k1.yy=k2.yy and k1.sto=k2.sto and k1.trannum=k2.trannum group by k1.trannum having…
The routed_way table has a column named way where the path of a vehicle is stored. The length of these paths can vary greatly, with some being short and others containing millions of points. Although the table only has thousands…
I am curious what techniques Database Developers and Architects use to create dynamic filter data response Stored Procedures (or Functions) for large-scale databases. For example, let's take a database with millions of people in it, and we want to provide…
I have three database tables: product product_manufacturer product_manufacturer_warranties. The product table has a one-to-one mapping with product_manufacturer and the product_id is stored in the product_manufacturer table. The product_manufactuer table has a one-to-many mapping with the product_manufacturer_warranties table. I need to…