Sql case when multiple conditions group by multiple rows. I have some distinct usernames, which represent groups, e.

Sql case when multiple conditions group by multiple rows. GRP_OTHERS select username, count(*) from host where seq between 0 and 2000 group by username; 63149 1 63732 1 64110 2 70987 12 76841 You can read about grouping by multiple columns in our article How to Group by Multiple Columns in SQL. Ask Question Asked 9 years, 4 months ago. However, I have attempted to show how this might be achieved by having a guess at what the test table might contain:. group by e_id, CASE WHEN w_id in ('1','2') THEN w_id ELSE 0 END but neither of these are grouping my data as I'd like. In the table below my output should be the I would recommend something like this. GRP_BSN. I know of two methods: GROUP BY (Case statement 1, Case statement 2) and subquery. Whether you have this logic at the front end or in a stored procedure is up you and probably depends on a lot of other things. user_name FROM users INNER JOIN tags ON users. select count(*) as anc,(select count(*) from Patient where sex='F')as patientF,(select count(*) from Patient where sex='M') as patientM from anc I have to group by ID and year+month of the Date to get a single row for each month and for each ID (it can have more statuses in a single month, each status having its own row) based on a few conditions: if it has row with status 'I' and/or row with status 'R' and/or row with status 'S', it must return the row with status 'I' (only these 3 ok, I am refering to some docs now. 3. You can create a new field called TypeOfDir, using the CASE instruction to get a value from 1 to 3 for the differents conditions that you have. SQL group by multiple columns. I think you can use a case expression: update table set c = (case when a = 1 and b = 1 then 1000 when a = 2 and b = 2 then 2000 when a = 3 and b = 3 then 3000 end) where (a = 1 and b = 1) or (a = 2 and b = 2) or (a = 3 and b = 3 So, in this case, only a row with service_sid = 2 should be returned. It’s particularly useful when you want to aggregate values based on specific conditions. Using case and group by in select statement not working. ip_address order by type = 'purchase' desc, id desc limit 1 ) as mostrecent from (select distinct t. From your question, it would be useful to know the contents of either test or have, i. I want to display 0 if the condition is not statisfied. ; THEN: Indicates the result to be returned if the condition is met. (group by): Multiple CASE WHEN statements allow you to implement conditional logic in SQL queries, allowing for the evaluation of multiple conditions and the execution of different actions group by e_id and . The CASE expression has two formats:. If at most one row can match a prog in your table: select p. prog, (case when t. If you want to use multiple conditions within a single WHEN clause, you can use the AND, OR, or NOT logical operators to combine these Case statement controls the different sets of a statement based upon different conditions. SUM( CASE [Exam]. orderno AND length(k. For example (using SQL Server 2K5+ CTEs): WITH C1 AS ( SELECT a1 AS value1, b1 AS value2 FROM table WHERE condition1 ), C2 AS ( SELECT a2 AS value1, b2 AS value2 FROM table WHERE How can I merge multiple rows with same ID into one row. Introduction to SQL GROUP BY clause. Oracle SQL - Multiple return from case. result You need to GROUP BY your CASE expression instead of your source column:GROUP BY model. 0. ; WHEN: Specifies a condition to check. I've seen many examples of how to use GROUP BY and CASE BY The SQL Server CASE statement sets the value of the condition column to “New” or “Old”. And obviously you can't escape from the fact that case expressions are really just a concealed way of writing nested IF/THEN/ELSEs which inevitably has, in a certain sense, "more procedurality" to it than some other language constructs. user_id WHERE tags. name, attempt. type, attempt. select count(*) as anc,(select count(*) from Patient where sex='F')as patientF,(select count(*) from Patient where sex='M') as patientM from anc Use: SELECT t. ip_address from table t ) t; My query below returns multiple lines instead of aggregating the count. SELECT 6. Then the COUNT() function counts the rows in each group. Cust = ID WHERE s. "mode"=2 AND I'm using standard SQL on BigQuery to create a new table based on certain conditions within an existing table. 1. You would typically need in this case a group by where the first name is found in a per group and the count = 2. Is there a "better" way to rewrite a SELECT clause where multiple columns use the same CASE WHEN conditions so that the conditions are only checked once?. "pId" WHERE t1. i was trying to use Case, but the problem is that Case does not support multiple columns. Modified 10 years, 10 months ago. What happens if we have more than one condition we want to apply to our data? The following example shows how to use the CASE The case statement in SQL returns a value on a specified condition. ReturnYear = 2017 For 6 accounts, the SQL should return 6 accounts with their Balance, Income and Outcome of that account. Ask Question Asked 3 years, 5 months ago. prog = Desired result is, I want all the rows and observations from the dataset 'have' plus one more variable 'CR_ratio' and it should have value as 9. type , Summary: in this tutorial, you will learn how to use the SQL GROUP BY clause to group rows based on one or more columns. "pId" FROM Table1 t1 JOIN cte t2 ON t1. I have some distinct usernames, which represent groups, e. (Case When col1 > col2 Then col3*col4 Else 0 End) as SumSomeProduct From Group By Case When col1 > col2 Then col3*col4 Else 0 End SQL Group by using different conditions and multiple columns. group by in case of nested cases with conditions on different tables. That doesn't exclude it from sorting, by the way, but it puts all those rows together in the result, making 'SurName' the The alias isn't available to use in the GROUP BY because when GROUP BY happens the alias isn't defined yet: Here's the order: 1. One of the ways to compare sets is to take the count of group, filter groups by search set, and see if number of matches per group equals original number of group members: In that case: SELECT distinct ID FROM tblTemp as T1 INNER JOIN tblTemp as T2 ON T1. You can not use wildchar eather while using a group by. Of course, you can group rows by more than one column. Viewed 2k times SELECT course_id FROM table t GROUP BY course_id HAVING SUM(case when prerequisite_id not in (1, 2, 3) then 1 else 0 end) = 0 and SUM(case when prerequisite_id in (1, 2, 3) then 1 else 0 end) > 0; Currently when I issue this SQL, it gets the distinct username. GRP_OTHERS select username, count(*) from host where seq between 0 and 2000 group by username; 63149 1 63732 1 64110 2 70987 12 76841 sql update multiple rows, with condition in each row [closed] Ask Question Asked 5 years, 10 months ago. What I now want to do is have multiple THEN clauses within those WHEN statements, as I'm aiming to add more than one column. SELECT column_name, CASE WHEN condition THEN result END AS new_column FROM your_table; Let's explain each part in detail: SELECT: Specifies the columns to be included in the result set. Ask Question Asked 10 years, 10 months ago. Look at all the other answers. We can use a Case statement in select queries along with Where, Order By, and Group By clause. Is there a solution to this? Use CASE with multiple conditions. select case when s. I have table: I want to add a case to check if exists add its price to type1 so I tried something like. prog is null then 0 else 1 end) as it_exists from (select 1 as prog from dual union all select 2 as prog from dual union all select 3 as prog from dual union all select 4 as prog from dual union all select 5 as prog from dual ) p left join mytable t on p. I determine how many rows each method will take and then base my process on that. Another way to write this query would be to utilize the ELSE clause. contactid FROM YOUR_TABLE t WHERE flag IN ('Volunteer', 'Uploaded') GROUP BY t. Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance Azure Synapse Analytics Analytics Platform System (PDW) SQL analytics endpoint in Microsoft Fabric Warehouse in Microsoft Fabric Evaluates a list of conditions and returns one of multiple possible result expressions. Then, I un-pivot, and take it from there. Share. SELECT FileName, Count(*) FROM tablename WHERE asofdate='10-nov-2009' and isin is null GROUP BY FileName You can call multiple analytic functions inside your inner query, with different partition-by clauses, instead of just one; and then work from those - combing the analytic ranking of the grades and steps within the case expressions. You can use functions like UPPER or LOWER to make comparisons case-insensitive. For example, you can use GROUP BY with an employee table to know how many employees are of each gender. A CASE statement can return only one value. You may be able to turn this into a subquery and then JOIN it to whatever other relations you're working with. Name = 'B' EXCEPT SELECT distinct ID FROM tblTemp The following query gets the most recent id based on your rules by using a correlated subquery:. The GROUP BY is an optional clause of the SELECT statement. ex. Table 1 is a raw table. – I have a table like below: I want to select the group which has RELB_CD =9093 and INFO_SRC_CD with 7784. price) AS TOTAL FROM table1 t, table2 k WHERE t. I have multiple WHEN clauses to support this (as there are several different conditions I'm checking for). Both conditions should be present in the group. "pId" HAVING SUM( CASE WHEN t2. SQL group by under some conditions. FROM 2. "Declarative" was intended with respect to the physical access to the data (the "pointer chasing" that was so prevalent before the RM). It allows for conditional checks within SQL queries, offering a I'd like to use GROUP BY with a CASE statement, to group results in a particular way if @myboolean is true. . Example 3: Using a WHERE Condition with SUM and GROUP BY. WITH cte AS (SELECT DISTINCT * FROM Table2) SELECT t1. In this case, the a1 replica is used for the first condition (planet - earth) and the a2 replica is used for the second condition (object - spaceship_a). 0/SUM(SUM(CASE WHEN Year = '2010' THEN Total ELSE 0 END)) OVER '2010 Percent of Total' ,SUM(CASE WHEN Year = '2011' THEN Total I have a sceanrio where i need to retreive values from different sub queries based on a condition in a main select statement. id from table t2 where t2. One way is to use GROUP BY with HAVING to count that the number of rows found is 2, of which 2 are matching the condition;. , column_name = 'value'. And this is what you will see me doing. contactid HAVING COUNT(DISTINCT t. 2521 in the matching rows. My question is this: how do I select users whose ancestors hail from multiple, specified countries? For instance, show me all users who have ancestors from England, France and Germany, and return 1 row per user that met that criteria. entry_date = & entryDate GROUP BY TYPE; It gives In these cases, using the GROUP BY clause with multiple columns unfolds its full potential. It allows you to compute various statistics for a group of rows. "pId" = t2. GROUP BY puts the rows for employees with the same job title into one group. AS OPTOUT FROM Table GROUP BY product, EMAIL. GROUP BY model. Case Sensitivity: Be aware of case sensitivity in comparisons. Name = 'A' and T2. SQL using count in case statement. I would like to group all the other usernames (which happens to be numeric) into a group e. id, users. See the example below. type END ) AS TYPE, SUM(t. SQL using CASE in count and group by. Modified 9 years, (CASE WHEN w_id not in ('1','2') THEN fee END) as value3 from table1 group by e_id ,CASE WHEN w_id in ('1','2') THEN w_id ELSE 0 END SQL SERVER 2008 TVF OR CHARINDEX to search column with comma. The CASE expression has two formats: simple CASE expression and Multiple THENs in CASE WHEN. ; default_result: The count case with multiple conditions in same row. g. The simple Your query would work already - except that you are running into naming conflicts or just confusing the output column (the CASE expression) with source column result, which has different content. ; ELSE: Optional, specifies a default result if no conditions are met. CASE @OrderByColumn WHEN 1 THEN Forename ELSE NULL END So if @OrderByColumn is not 1 then the statement returns always NULL. SELECT (CASE WHEN t. HAVING 5. Customer is not null then 'Paid' else 'Free' END as Paid_Free, Status,case when CompleteDate < '4/1/2018' then '1H' else '2H' end as Busy, count(*) userCount from CompletesCur OS left outer join Sales s on S. So everything is wrong. Then you can group by that new field. In this article. "keyVal" = 45 GROUP BY t1. both of the two source datasets provided in your code example. As I don't have your base tables I've given the fixed values from your sample as a further inner query to demonstrate the idea, with a Let's say I have a table like this: Letter Color A Red A Blue B Red C Red C Red What I would like to achieve is the below output format: SQL Check conditions across multiple rows. This would look like the following query: SQL GROUP BY CASE statement with aggregate function. GROUP BY is a clause of the SELECT command. If you need it aggregated across all products, you could just JOIN back to your base table, or use a window function, e. SELECT Type ,SUM(CASE WHEN Year = '2010' THEN Total ELSE 0 END)'2010 Total' ,SUM(CASE WHEN Year = '2010' THEN Total ELSE 0 END)*1. What is that SQL? CASE: Begins the expression. SELECT CASE testStatus WHEN 'A' THEN 'Authorized' WHEN 'C' THEN 'Completed' WHEN 'P' THEN 'In Progress' WHEN 'X' THEN 'Cancelled' END AS Status, CASE testStatus WHEN 'A' Applying GROUP BY when using multiple CASE WHEN. I add a 3-row table for the possible category values High, Mid and Low, and I add a 3-row category table: categories 'a','b', and 'c'. WHERE 3. I have searched this site extensively but cannot find a solution. Modified 3 years, 5 months ago. EDIT: I think this can also works for you . SQL Group By condition. ip_adddress, (select t2. What am I doing wrong. It contains WHEN, THEN & ELSE statements to execute the different results with It’s particularly useful when we need to categorize or transform data based on multiple conditions. use aggregations and aggregate functions and OLAP functios to get min, max, first, last and rank per group or partition. SQL query group by with multiple conditions. A user can have multiple rows on the table, as a user can have ancestors from multiple countries. If you had 2 rows with the values: null, null, null, 'A' and 'A', null, null, null they would be considered identical in this match. THEN join back to the original table for all people within those given groups. I want to aggregate table 1 to get table 2 based on email id. 4. When value in first and second row in the same column is the same or when there is value in first row and NULL in second row. You can use a WHERE condition in your query with SUM() and GROUP BY. ; condition: The condition to be evaluated, e. count function inside case statement. CASE: Evaluates the specified condition for each row in the dataset. Example #2: GROUP BY Multiple Columns. This Initiates the conditional logic. The problem with the SQL I provided was that the numbers are wrong! As per the comments I think the problem stems from joining multiple times which is 1 If the result type of result-expression is a row type, then the syntax represents a row-case-expression and can only be used where a row-expression is allowed. If you're trying to get the count of each filename, do. "status" = 1 AND t1. I would do this in multiple steps. Group BY on Condition basis. Also your syntax would be slow if it worked. The GROUP BY clause allows you to group rows based on values of one or more columns. How to group same columns from same two tables, but from two different result sets and/or conditions. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company If the rows are protected in that way you can do this: SELECT users. SQL select count with multiple cases. It returns one row for each group. e. invoice_no) < 12 THEN 'type1' ELSE t. Complex Conditions: For complex filtering, consider using subqueries, joins, or CASE expressions. It can be CASE expressions allow you to set conditions for your data and use similar logic to if-then statements to search your data, compare the values, and evaluate whether they match If you need a refresher on the GROUP BY clause, read this article on GROUP BY in SQL. Get the action type, then issue the appropriate query. I don't want to merge when value in first and second row in the same column is different. GROUP BY then collapses the rows in each group, keeping only the value of the column JobTitle and the count. The distinct in your Case statement is attempting to return multiple values when only one is allowed, and your SELECT statement will only return one value in one row currently. ORDER BY Currently when I issue this SQL, it gets the distinct username. flag) = 2 Using SUM with CASE WHEN allows you to perform conditional summation in SQL. Ask Question Asked 15 years, 3 months ago. 1 select * from (select id, SUM(case when [order] = 1 and [date] is null then 1 when [order] = 2 and [date] is null then 1 when [order] = 3 and [date] is null then 1 else 0 end) score from test group by id) scores where score = 3 SQL case statement on multiple rows. GROUP BY 4. id = k. ; result: The value or calculation to return when the condition is true. In this article, we’ll explore how to use the CASE statement with multiple With the searched CASE expression, we can have multiple WHEN conditions: SELECT [BusinessEntityID] , [JobTitle] , [HireDate] , Seniority = CASE WHEN DATEDIFF ( The CASE WHEN statement in SQL is a conditional expression, similar to if-else logic in programming languages. ID = T2. ip_address = t1. Data Types: Ensure that the data types of values used in conditions match the corresponding column types. Here is the example of my query: SELECT ActivityID, Hours = (CASE WHEN ActivityTypeID <> 2 THEN FieldName = (Some Aggregate Sub Query), FieldName2 = (Some other aggregate sub query) WHEN ActivityTypeID = 2 THEN FieldName = (Some Aggregate Sub Query with diff result), SUMIF can be replicated in SQL with SUM(case statement):. The following I think this can also works for you . This works for 2 conditions, but can be extended to 3 or more with more replicas of the data table in the FROM clause and the corresponding comparision conditions. ID WHERE T1. name IN ('tag1', 'tag2') GROUP BY users. user_name HAVING COUNT(*) = 2 In this case you match the HAVING COUNT(*) = test value against the number of tags name in the IN clause. In this case, the database engine alters the procedure seen above to return the results of the query. Consider it the equivalent of “pivoting” data - combining multiple rows by category and an aggregate function. I tried with case when as below, but it didn't worked either as it didn't produce desired results. To effectively harness CASE in SQL, grasping its structure and practical uses is SQL Server CASE expression evaluates a list of conditions and returns one of the multiple specified results. You can combine multiple conditions to avoid the situation: This example might help you, the picture shows how SQL case statement will look like when there are if and more than one inner if loops. Inside the GROUP BY clause, we specify that the corresponding count for “New” is If you need to evaluate multiple conditional statements, the SQL CASE statement will do the job. SubjectID WHEN 'Maths' THEN CASE WHEN GradeID = 'A' THEN 1 ELSE 0 END WHEN 'English' THEN CASE WHEN GradeID = 'B' THEN 1 ELSE 0 END ELSE 0 END ) = 2 The ELSE 0 ensures other subjects are ignored, and the SUM() = 2 ensures both conditions are matched. select t. multiple case SQL query retrieve single row as multiple column. Results not limited to set conditions. data have; input ID : $4. You would define the first two population levels and then use ELSE to bucket every other city into high. Example 2: CASE WHEN With ELSE in GROUP BY. In general, the value of the case-expression is the value of the result-expression following the first (leftmost) case that evaluates to true. id = tags. gircbgu bazup kqyhk dowkcmm exh wjftnn tyxv lcgkfa grku vffyn