How do I make an SQL query that returns records only if there are multiple records for a date?
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I have a model that consists of company name and transaction date columns. Each row represents a single transaction.
How do I construct an SQL query that retrieves only those records for which there are multiple transactions for that company on the same date?
It should exclude any transactions if there is only one record for that company on that date. Is this possible in SQL?
We can try using
COUNT as an analytic function:
SELECT * FROM ( SELECT *, COUNT(*) OVER (PARTITION BY company, date) cnt FROM yourTable ) t WHERE cnt > 1;
SQL select only rows with max value on a column, How do I query SQL for a latest record date for each user? eTour.com is the newest place to search, delivering top results from across the web. Content updated daily for how to learn sql.
use group by with
SELECT company, date FROM t group by company, date having COUNT(*)>1
Note: Here transaction date column must have to date data type if it is date time then it will need to convert date type
How do you write a query to display all records? Save time Searching at MyDeal. Search For Database Sql with us!
SELECT * FROM TRANSACTION_DETAILS WHERE (COMPANY_ID, TRUNC (TRANSACTION_TIME)) IN ( SELECT COMPANY_ID, TRUNC (TRANSACTION_TIME) FROM TRANSACTION_DETAILS GROUP BY COMPANY_ID, TRUNC (TRANSACTION_TIME) HAVING COUNT (*) > 1) order by COMPANY_ID,TRANSACTION_TIME
inner query finds the companies with more than one transaction a day.(multiple transactions for that company on the same date). outer query retrieves these transactions for the companies for those days only.
How can I get max date record in SQL Server? Whether you're learning SQL for the first time or just need a refresher, read this article to learn when to use SELECT, JOIN, subselects, and UNION to access multiple tables with a single statement.
How do I get the highest row value in SQL? You only need a single job, not all the jobs. Here’s a sample query: And here are the results: As you can see, there is some duplication in the results. We wanted to return a single record for each user, but instead we get multiple records for some users in the results.
You have a table that can have multiple records for a given entity (such When creating an aggregate (such as MAX) you don't want to group by the on with the sample query: The sub query is written to get the max date for The SQL Outer Join - return all specified rows from one of the two tables in the join. In the SQL Inner Join we saw how a JOIN can be used to define a relationship between the columns of two different tables. We also saw that the INNER JOIN only returned rows where there was a match found in the specified join definition.
If omitted, all of the table's columns are returned, in their default order (from top to bottom). 2, where, Returns only rows that match a condition. of which only the top 5 will make it through the management training program. where with dates, Files Cabinet, A folder containing project files in various formats If you do not include the ORDER BY clause, the query will return an arbitrary set of 25 records from the Students table that satisfy the WHERE clause. The TOP predicate does not choose between equal values. In the preceding example, if the twenty-fifth and twenty-sixth highest grade point averages are the same, the query will return 26 records.
- inner query finds the companies with more than one transaction a day.(multiple transactions for that company on the same date). outer query retrieves these transactions for the companies for those days only.