I have a table called Sets for LEGO: set_number (Primary Key) set_name other_fields 123 Firetruck abc 234 Star Wars abc I have another table called Parts for LEGO: part_number (Primary Key) name set_number (references set_number from Sets) 1 Truck Roof…
Very new to coding. I have 2 tables, zips_usa which includes all properly formatted zips (zipcode, lat / lon / city / state etc) in the US, and table ageus which includes columns such as first name, last name, category,…
I am able to import other packages like java.io to eclipse but, I am unable to import java.sql to my project in eclipse. What could be the reason? I don't know how to proceed. I have tried a couple of…
How do i go about something like this, I want to check if a user exists against a table in python, and if the user exists , it should report that the particular user exists, else if the user does…
I got this error while trying to get variable from a DataBase in MySql 0x000002A MySQL Connection Error! MySql error is provided when version/value we're trying to get from database is not a number output when trying to print value…
Currently I'm studying and I received task to write query (join 4 tables: people, goods, orders and order details). So main table Order_details has two columns: Order_id and Good_id, in order to make possible to have many goods in one…
I am currently working on a project that has 2 very large sql tables Users and UserDocuments having around million and 2-3 millions records respectively. I have a query that will return the count of all the documents that each…
I have a table like this userId story novel 1 a b 1 a b 1 a c 1 b c 1 b c 2 x x 2 x y 2 y y 3 m n 4 NULL NULL How…
Indexes table Keyname Type Unique Packed Column Cardinality Collation Null Comment PRIMARY BTREE Yes No ID 7 A No AD_ID BTREE Yes No AD_ID USER_ID 1 2 A A No Yes USER_ID BTREE No No USER_ID 2 A Yes How…
I have a huge 23 GB CSV file I am trying to load, and I've found that instead of converting it to insert statements which takes a while, It's possible to directly load to the DB. So I tried the…