Category "sql"

MySQL OperationalError when deleting from DataJoint table after restricting with its part table: "You can't specify target table : 'part_table'"

Using DataJoint Python (0.12.9) on Ubuntu with MySQL 5.7 . Am running into an error with what I believed to be a fairly standard operation. Have a table named T

MySQL OperationalError when deleting from DataJoint table after restricting with its part table: "You can't specify target table : 'part_table'"

Using DataJoint Python (0.12.9) on Ubuntu with MySQL 5.7 . Am running into an error with what I believed to be a fairly standard operation. Have a table named T

Sequelize how to return result as a 2D array instead of array of objects?

I am using Sequelize query() method as follows: const sequelize = new Sequelize(...); ... // IMPORTANT: No changed allowed on this query const queryFromUser = "

"Illegal argument to function" in Postgres when doing select on a view with pgp_sym_decrypt() expression

I am using pg_sym_decrypt/encrypt to decrypt/encrypt some of the fields in my table. Decryption happens on select in a separate EntityComputed view that has a o

SQL: how to check if at least one keyword from a keyword list exists in a string

I have a table with the following schema, id data_string 1 I have a pen. 2 Monday is not good. 3 I love Friday. ... ... And I also have a list of k

Why do I have multiple entries per entity in the query output?

Would like to know why my query displays multiple entries per entity in the output. From what I understand there is only one active policy per entity. Created q

SQL (MySQL etc), what is the difference about length string (1-256) and (0-256)?

Thanks for reading my post. I wanna know, what is the difference between length (1-256) and (0-256) in sql and how to store them in database?. I was asked to de

Auto-increment in Oracle table when insert in the same table

I have a table and I want to increment a column by 1 when I insert a row into the same table. Table users - when I insert first row value of idusers is 1, and i

How to execute SQL query for selection of info from more than 1 table

I wanted to select values from one table according to another table I have a booking system with 'user' information table and 'appointment table', they have col

SQL query with count distinct using multiple columns

Having the following table in SQL Server: create table [dbo].[stats]( [customerid] [int] NOT NULL, [username] [nvarchar](256) NOT NULL, [source] [in

effective query than AND operator

I would like to know that is there any other effective way or query to get the desired output for the below query with AND operators because if I run this below

How to convert year month type to datetime format

I want to convert value year month ('202101') 2021 > year 01 > month to 2021-01-31(end day) in toad for oracle please help me, if somebody know.

Add column containing status to table based on number of occurrences

My SQL table contains two columns: Order and Order Line. Now I would like to add a third column (Status) to my table to indicate whether it's a single or multi

How do I write SQL query for average?

I have recently attended an interview on SQL. Below is the question: Write a query to retrieve city name, state name, city population and return the following c

searching in range between columns using sqlite3 in pandas

I have found solution to my problem in one question Merge pandas dataframes where one value is between two others I tried to modify it for my situation but it d

SQL convert output from integer to float

The numbers in my results are of type integer, but I want to convert them to float. import sqlite3 connection = sqlite3.connect("mydatabase.db") my_cursor = con

how to get data grouped by ids

I have grouped data in a temporary table according to id_card. There are multiple activities for each card. I want to send 1 email for all activities happened o

PostgreSQL - How to get month/year even if there are no records within that date?

What I'm trying to do in this case is to get the ''most future'' record of a Bills table and get all the record prior 13 months from that last record, so what I

Presto SQL query to calcute percent views

I have to calculate % contribution for each category. SELECT portfolio, (total_portfolio_views*1.00000/total_views)*100 view_contribution_perc FROM( select por

Count overnight hours as one day

I have a dataset where certain operations occur during the overnight hours which I'd like to attribute to the day before. For example, anything happening betwee