I have a table example: (Col3 is bit datatype) I want to select distinct from the table except for col3 and update col3 value to 0 if col3 values are different. (If all col3 values are same then distinct will return distinct rows). Here I am expecting the output to be: Any help? Edit When col3 values are same…
Tag: distinct
Is it possible to use SELECT DISTINCT and GROUP BY together?
Is it possible to use SELECT DISTINCT and GROUP BY clause together? I need DISTINCT to avoid duplicate values and make a single entry of the records, and then get the Total quantity of those duplicate values. For example, I have columns like Item Name and Quantity and their records are (product A,5), (product…
Select Distinct and sequence at the same time
How can I able to use Distinct on select statement along with a sequence on SQL Server I try this sub-query but no luck I get error of NEXT VALUE FOR function is not allowed in check constraints, …
MySql Select Statement (Other Company)
I am trying to select distinct users that are listed for other companies but not on my company (1). Here is an example From this table, I would like to get row 4 since he is in other company (not 1) but listed on others. I do not want others because they are listed on both my company and others.
How do I count the customers that made more than a purchase?
I have a table called order that looks like this: I am trying to display: 1.Total count of customers that bought 1 time only (that went to the store in one occasion, it could have been that they bought multiple items but it is only a one time event) 2.Total count customers that bought more than 1 time (that w…
Retrieve the first occurrence of a record by ID in SQL
I am trying to import some data into Excel from a SQL server, but I am having some issues. It’s my first time writing a query, although I am able to get the entire dataset, I have realized that the data is full of duplicates. I want to get rid of duplicates in Excel and only keep Unique records. I
Are postgresql `SELECT DISTINCT` queries deterministic?
Are Postgres SELECT DISTINCT queries deterministic? Will SELECT DISTINCT somecolumn FROM sometable return the same result (including order) if the table (and entire database) goes unchanged? In the Select Query Documentation the Description section notes: If the ORDER BY clause is specified, the returned rows…
SQL: Retrieve Distinct for different columns
I have the following scenario: In a SQL-Table I have the following columns: |—————————————-|————————————-| | Col 1 |…
optimization select distinct query
How can i optimize this query, how to rewrite a request through exists: Answer Please use ANSI style join syntax, first of all. Now, Coming to your question, according to my knowledge NVL perform worse when working with large data sets. So how can we achieve the same functionality? — We can use DECODE o…
SQL distinct values per group – how to “group by” and get a list of distinct values per group?
I need to do a bigquery/standard SQL statement (or a series of statements) that does “group by”, and returns a list of distinct values for each group (not count). for example for tables with headers …