How do you remove duplicates without using distinct in SQL?

rjk1203

1. rjk1203. Answered On : Sep 25th, 2008.
2. Assume ‘location’ is the column in ‘Emp’ table has several duplicatesEMPEmp_Id varchar(10)Location varchar(12) you can remove the duplicates using ‘union’ select location from emp union select location from emp ; this will strip the duplicates . Hope this will help .

How do you delete duplicate rows in SQL query?

To delete the duplicate rows from the table in SQL Server, you follow these steps:

1. Find duplicate rows using GROUP BY clause or ROW_NUMBER() function.
2. Use DELETE statement to remove the duplicate rows.

What can I use instead of distinct in SQL?

6 Answers. GROUP BY is intended for aggregate function use; DISTINCT just removes duplicates (based on all column values matching on a per row basis) from visibility. If TABLE2 allows duplicate values associated to TABLE1 records, you have to use either option.

How do I select without duplicate rows in SQL?

SQL SELECT DISTINCT Explanation SELECT DISTINCT returns only unique (i.e. distinct) values. SELECT DISTINCT eliminates duplicate values from the results. DISTINCT can be used with aggregates: COUNT, AVG, MAX, etc. DISTINCT operates on a single column.

How-to get rid of duplicates in SQL query?

How to Remove Duplicate Records in SQL Method 1 – ROW_NUMBER Analytic Function. The first method I’ll show you is using an analytic function called ROW_NUMBER. Method 2: Use a Subquery with ANY. Method 3 – DENSE_RANK. Method 4 – MIN or MAX Function. Method 5 – Correlated Subquery with MIN or MAX. Other Methods You Might Come Across.

How do you remove rows from a table in SQL?

Open phpMyAdmin and log in. Select the database from the left menu. Select a table from the list in the left menu or in the center box. Select Drop from the center row of the table you want to delete. Drop is SQL-speak for delete. Confirm in the popup box that appears. The table is deleted.

How do you delete a row in SQL Server?

To permanently delete a query. From the View menu, choose Solution Explorer. In Solution Explorer, select the query you want to permanently delete. Right-click the query and from the shortcut menu, click Remove. In the Microsoft SQL Server Management Studio dialog box, click Delete.

How does distinct work SQL?

A SELECT DISTINCT statement first builds our overall result set with all records,i.e including duplicate values based on FROM,JOIN,WHERE,HAVING,etc statements.