I created a view with a concatenated column named DisplayName, using the code below. Is there a way to change specific DisplayName values using a case statement (or a better method) Something like: case when DisplayName = ‘Robert Jones’ THEN ‘Bob Jones’ when DisplayName = ‘Thomas Simms’ THEN ‘Tommy Simms’ or when FirstName = ‘Robert’ AND LastName = ‘Jones’ THEN
What is Difference Between AND,OR operator in MYSQL ,While Retrieving the Rows?
Are there difference between these queries and how they execute? Answer It’s to do with intersecting truth tables. In the first query the or is inside brackets so it will execute first and return true if the country is either USA or France. Then the And will execute and compare the result of the OR to the result of creditlimit
Teradata SQL- Order by date and flag rows between two events
I have a dataset like this Where I have a field called, ‘SALES_CHANGE’ which identifies on which date sales either significantly rose or dropped. I’m interested in creating another field that flags …
How to create a .txt file and insert data into it in SQL?
I’m learning about triggers and events and I have the following issue: I have created a trigger that inserts data in a table called updated_movie when an update is made in table movie. Also, I want …
Get start and end date per group and sequence, derived by one date column
I have the data below: DECLARE @tbl TABLE ( ID VARCHAR(8) ,WeekDayName VARCHAR(15) ,StartDate VARCHAR(15) ,EndDate VARCHAR(15) ,A_Type VARCHAR(3) ,A_Days VARCHAR(10) ,A_Hours VARCHAR(10) ) INSERT …
Cumulative elapsed minutes on hourly basis in PostgreSQL
I have a datetime column. I need to derive a column of total minutes elapsed from the first to the last value of every hour grouped by hour, but, in cases of overlapping event, the time should be …
Clean way to construct cartesian joins in BigQuery (SQL)
I have multiple lists, and I want to construct cartesian joins of these lists using SQL. I’m wondering if you know a cleaner method than the one below. Thanks Answer Your query looks fine, but there is no reason to use CTEs:
Calculating time with datetime values
I have two tables where one has tasks, other has actions. In the task table I have tasks that ha ID, start date (when the task was created) and end date (when the task was closed). In the action table I have actions that were done in the task table so it has ID, task_ID, action_ID and time of the
Drop duplicates records in a no index table using postgresql
I have a table like as shown below Subject_id subject_name Standard Rank Previous_subject_id 13 ABC 1st 1 21 13 ABC 1st 1 23 …
coverting byte array from database to video file
my name is omer and im a student. my project is a website, in the websitye there is an ption that the user will upload a file. the websiteput it on the database and than show it but some why all i get …