I have the Table1 and the Table2 tables. Table1 has the B (Primary Key) and IC columns. Table2 has the CC, SC and IC columns: Table Table1 … B IC … … B1 IC1 … Table Table2 … CC SC IC … … CC1 SC1 IC1 … … CC1 SC2 IC1 … … CC2 SC1 IC1 … … CC2 SC2
Tag: sql-view
SQL SELECT WHERE meta_keywords = ‘[”]’
I have been having trouble query after ‘[”]’ in table. The data is inserted from pandas dataframe with datatype object (if it matters). I want to get make a view without the empty lists. Have tried to write the empty list different ways ‘[”]’ , ‘[“””]’ etc. but i cant get it to work. ex where meta_keywords <> ‘[”]’ Answer
Find the first AND last date that an ID occured in dataset SQL
I have a very large data set with over 1 million rows and over 70 columns. The dataset contains data about back orders of an organization. Every day a snapshot is being made and all orders that are backorders are added to the dataset. I want to know what the first date is when an OrderID occurs in the dataset,
How to update only first NULL column with a value in Snowflake sql?
How to update a table first Null column with value and other Null columns with the text ‘Available’? My attempt: I tried using Case statements but it is affecting the performance of a query. Is there any efficient way to update a table as mentioned below the expected format? Expected Output: Answer Try using a combination of nvl2 and coalesce
Find the sum total of two CASE statements – (How to use a CASE expression or Lateral JOIN
I am looking to find the total profit made on an each way horse racing bet I have created a view to show odds and returns for each part of the bet, but I would like to add another column (EachWayProfit) to find the total profit. I have tried to simply SUM the two case statements though receiving a Syntax
Can this be done as a SQL VIEW
I have a SQL Server table of Customer’s Events: There can be many EventTypes for the same customer in one day. EventTypes are like 1 – CheckIn 2 – CheckOut 3 – ExamStart 4 – ExamEnd Now I want to select Customers that are currently (today) on premises. That’s Clients who had checked in, but hadn’t checked out, no matter
MySql Trigger Function about status
I would like to ask a solution for mysql database. since i made database(order) about 3 column named as order_date(datatype – date),expired_date(datatype – date) and status(varchar(10)). as status …
Sql View with WHERE clause runs slower than a raw query
This runs in a constant time: However, this one takes about 7 seconds: Component is a SQL view which consists of the first longer query without WHERE clause. Why this happens? Does the view retrieve all records and then apply Where clause? Is there a way to speed up the second query? (without applying indexes) Answer Why this happens? Does
Creating a VIEW in SQL-Server
I’m trying to create a VIEW in my database, and it shows me “Incorrent syntax error” Am I doing something wrong? Answer Include GO between your Create View and Select query (or) view should be the only statement.
Will a SQL view filtered by large datetime always provide current data?
If I create a view today for a table that continuously keeps getting data, using date filtering from 1900 and 2100, for example, will that “copy” become truncated to the moment that I build the view or since it is being filtered to a very large date will it keep showing the current data to the users that can access