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Tag: sql

Why are these 2 queries giving different outputs?

Query no 1:- The Query 1 gives me the following output:- Query no 2:- The Query 2 gives me the following output:- Answer Summary: The AND operator has higher precedence than the OR operator. To fix it, use brackets around the OR expression. AND has higher precedence than OR so your first query is the equivalent of (with added brackets

Remove overlapping date intervals

I have two tables in my sql server database : PlannedPeriods : containing periods of future events UnavailabledPeriods : list or periods that are not available Here’s an example for structure and data : I would like to remove all unavailable periods from the planned periods in order to obtain this result : Answer In this case you should be

Grab Latest Data Based on String

I have a table with Forecast, Budget, & Actuals. I need to grab the latest data based on the month which is prefixed in the d_period field (Ex: Jan, Feb, Mar, Apr, etc.). The query should always default to the latest month (no relation to current month – the upload varies so it could be 2 months ago, 4 months

MySQL Circular References in One-to-Many Relation: Is there a way to avoid it?

Consider following as an example: I have a User table which contains user’s information along with a PrimaryAddress column that references Address table. The Address table, contains address information along with a UserId column which refers to who the address belongs to. Each user can have many addresses, but only one address can be PrimaryAddress. Therefore, the User table needs

Is there a way in SQL Server to sequence data by a group? [closed]

Closed. This question needs details or clarity. It is not currently accepting answers. Want to improve this question? Add details and clarify the problem by editing this post. Closed 4 months ago. Improve this question I have a table of data that has the following columns The data is going into a timeclock system. I am ultimately trying to find

Multiple Views combined into 1 Table/View using UNION (SQL)

I created a DB that combines data from multiple views into 1 view for me to pull into PowerBi. I use Power Query to append the views into 1 table for me to pull from and create my visuals. The problem is the DB is growing much larger then originally planned and my computer is have a very rough time

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