I’m trying to eliminate certain records from a dataset using SQL Server. The title of my post may be inaccurate, as a better solution may exist than what I have in mind. In my query, I am selecting …
Populate an HTML DropDown List with data from mysql database without PHP
I’m currently building a rails app where im trying to fetch data from different tables from my sql database and I need to put that fetched data (id, first_name, last_name) into an HTML Drop-down where …
sql – Get the Minimum Value of 2 subqueries
I have a query which has 5 subqueries. I need it to have only 4 subqueries, since two of them are supposed to be only one result. The problem is I don’t know how to maintain the query structure and …
write an sql query to look up the names of classes that meets in room R128
Consider the following schema: Student(snum, sname, major,level) Class(cname, meets-at,room, fid) Faculty(fid, fname, depname) Enrolled(snum, cname) write an SQL query to find the names of all the classes that don’t meet in room R128 with the smallest number of students(compared to all other classes). A…
Getting all rows with common value in column A and specific value in column B
In MySQL I have table matcher_table with columns matcher and type. Records which are put here can have many different values for type column. One type matches another one only when value for matcher …
Mysql 8 How to use an if inside a stored procedure and using cte
I am using a CTE inside a stored procedure, and it works ok, but the problem is when I try to add a conditional, I got the following message: You have an error in your sql .. Syntax to use near ‘IF. Answer You cannot use an IF statement in a query. It is meant to execute a block of
How to Fix Error Msg 41337, Level 16, State 100 in Create Memory Optimize table in SQL Server
I want to use a memory optimize table and I got below error – how can I fix it? Any idea will be helpful. Msg 41337, Level 16, State 100, Line 1 Cannot create memory optimized tables. To create memory optimized tables, the database must have a MEMORY_OPTIMIZED_FILEGROUP that is online and has at least o…
SQL compare the incremental difference from a column
Let’s say I have a table with the columns CurrentDateTime and CurrentValue where the CurrentValue column mostly increments. Sometimes though, the CurrentValue resets, this is where the issues start. …
Is there an optional prepared statement in SQL for different specific levels of querying
Suppose I have a query that returns the total monthly sales of individual products in my database: Is there a way to query various levels of specificity without creating many similar queries. For instance, If i enter Espresso for the product, leave out the milkoptions entry, and enter small for size, could I …
How to calculate oracle column data with group by
I want to calculate different columns from different tables. i am trying to get my required result from my code but the result give me twice same rows of data i have 3 tables in my oracle database …