and not sure how to make it working using CURSORS.I would like to use the following in the CURSORS above. DECLARE @FirstName @LAstname @Age @FirstValue, @HighestValue @LastValue SELECT x.publishdate, y.firstname
Once I was in an interview, the same question was asked to me. I knew the answer so I wrote the query to find the Nth highest salary in a SQL table. I used the top keyword to write the SQL query. But after that interviewer asked me, "Could you please write the query without ...
RECOVERY_PENDING: The database is in the process of recovery but has not yet completed. SUSPECT: SQL Server has detected a problem with the database and is unable to recover it. By checking the state of your database using this query, you can determine if your database is in the recove...
In this article, I am going to explain to you how to find the second highest salary in various ways. This is one of the most common questions asked in an SQL interview. Below are the several ways of finding the Nth highest salary: How to find the second highest salary in SQL Server ...
To find the maximum value of a column, use theMAX()aggregate function. The function takes a column name or an expression to find the maximum value. In our example, we use the subquery to find the highest number in the columngrade. The subquery is: ...
Insert some data to work with: INSERT INTO [dbo].[Outlier] ([ObsValue]) VALUES (2.1),(2.6),(2.4),(2.5),(2.3),(8.2),(2.1),(2.3),(2.6),(8.3); How to find outliers in SQL with Interquartile Range (IQR) Method We know that for a set of ordered numbers, the median Q2, is ...
Fetching the maximum value for each group is a common requirement inSQLwhen dealing with grouped data. For instance, we might want to find the highest-paid employee in each department or the latest order for each customer. Traditionally, this involves using subqueries, joins, or window functions...
We have another view dba_tablespace_usage_metrics introduced from 11.2 which can be used to find Oracle tablespace utilization. The values reported are in blocks, not bytes, which can be easily computed using the database block size column value new_value dbblock noprint ...
In this way, we’ll have a single value for each modality of the variable of interest. SQL GROUP BY Example 1 We can begin by showing a simple example of GROUP BY. Suppose we want to find the top ten countries with the highest number of Unicorn companies. SELECT * FROM companies ...
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