Ms sql distinct on two columns

Example : select with distinct on two columns. The following two rows for (saleprice, saledate) would qualify as distinct (though looking identical to the human eye): (12 NULL) (12 NULL) Also passes in a unique index and almost anywhere else, since NULL values do not compare equal according to the SQL standard. SQL distinct for fields in a database - Stack.

It is understandable, MS bet is all on. But I want a single column to have distinct values. Distinct only one column in sql. Find all tables containing column with specified name - MS SQL Server.

Using SQL Server, I have. DISTINCT for only one Column. ID SKU PRODUCT ===== FOO-Orange BAR-Orange FOO-Apple FOO-Orange I want. You will need another identifier, like an insert date or something. Since you are not using SQL , you must be using standard structured query language in (ADO or VBA), so you only have access to basic functionality.

I need to query an SQL database to find all distinct values of one column and I need an arbitrary value from another column. We can count during aggregation using GROUP BY to make distinct when needed after the select statement to show the data with counts. Remember that you must include.

For the demonstration, we will use the customers table from the sample database. Dear Marco, I have used this solution, but on a very large fact table ( in my case billion rows), this expression generates a very large dataset. Select distinct values of two columns as single.

Gnanesekhar select distinct (claimNumber, versionnumber) from claims this is the exact syntax I asked whether it will work. I dont think it works even with CTE right. Did u try with dummy data. I tried seems its not working. Is there any reason that sql doesnt support a distinct on columns.

The primary key ensures that the table has no duplicate rows. In the intersted of assisting others, the solution i used was to use the GrouBy function. This function will allow you to group by multiple columns and effectly peform a distinct filter on multiple columns. If the selected columns result in duplicate rows, they will be removed.

Consider the below SQL on AdventureWorks. Solved: Is there a way to get distinct values for multiple columns ? Solved: Hi, I want to display value which is as described below. The two main ones I use are common table expressions and sub-queries. The syntax varies between vb.

SELECT whatever FROM more. I need to select one of each version in the data (using the code field) while keeping all the columns in the final output. I am selecting distinct on a code field but I cannot figure how to return the rest of the columns. In the example below, the query gets the unique values of reorderpoint and then does a SUM. Although others have, apparently, not recognized it as such, this is a fine bit of SQL Spackle with some very easy to understand examples with output and explanations as well as the GROUP BY alternatives.

SQL - Multiple tables, multiple columns, one distinct. Popular Topics in Microsoft SQL Server. Basically I am wanting to be distinct on one row, but view different rows. Can anyone show me the sql statement to do this.

How should I modify the query to obtain the desired output? It may seem obvious that the data model should be optimize but remember this is a demo of a SQL skill, it is not a demo for data modelling. Two null values are not considered distinct from each other, while at the same time they are considered to be unique. This strange situation seems contradictory, but there’s a reason for it.

In some situations, you may want to treat two null values as different from each other — in which case, use the UNIQUE predicate. Split a column with delimited string into multiple columns. There are many reasons why you would like to split a delimited column into multiple columns , one of them is because on certain systems you will find data storage on a coma-delimited format or other kind of formats and you want to process that information. Obviously there are a lot more columns.

I want two distinct columns (X, Y) along with other columns (GI CODE, TID). Please help me on how to do this. In the below example, first and last have same X and Y and distinct should be applied on this two columns and select other columns (GI CODE, TID) as well in the query.