關於 count(distinct case when) ，我們在網路上蒐集到這些相關的討論、資訊與評價

#11. Overview of the SQL Count Distinct Function - SQLShack

COUNT ([ALL | DISTINCT] expression);. By default, SQL Server Count Function uses All keyword. It means that SQL Server counts all records in a ...

#12. sql-按条件统计非重复值，count(distinct case when)使用 - 码农网

项目中，遇到一个统计需求，从某张表中按照条件分别统计。刚开始想到用union all的写法，太臃肿，后来使用count(distinct case when)解决此问题数据统计中，count出现 ...

#13. Beast Mode for Count Distinct with Condition - Domo Dojo

The above give me a syntax error. Trying with 'Case':. (CASE WHEN `visitor_called` = 'Y' then COUNT(DISTINCT `visitor_id`). else '0 ...

#14. SUM Case Logic with Distinct - DBA StackExchange

count (column) does not count null values so you could use count() with a case statement that returns h.USERID or null . , COUNT(DISTINCT ...

#15. How to calculate average using case when and distinct count?

select; industry,; COALESCE(AVG(CASE WHEN shopcode in (1,2,4) THEN ... the spend per distinct count of user i.e.: sum(dollar)/count(distinct ...

#16. Sql Count Distinct Case When - UseExcel.Net

Sql Count Distinct Case When! Sql Count Distinct Case When excel, tutorial excel, step by step excel, how to use excel to be a smart Excel User in no Time.

#17. SELECT CASE SQL中的DISTINCT COUNT - MYSQL _程式人生

我有一個報告表，其中包括欄位 Case （唯一編號）、 ISR （個別安全報告- ... Count(distinct CASE when yearsold between 6 and 12 then case else ...

#18. Count distinct using case when - Programming - SAS ...

proc sql; create table count as select distinct (case when comp_ID is not missing then count(distinct(comp_ID)) when comp_ID is missing then ...

#19. count [distinct] - BigQuery Syntax and Examples

COUNT DISTINCT function. Definition, syntax, examples and common errors using BigQuery Standard SQL. The COUNT function returns the number of rows in a SQL ...

#20. Distinct count with case when for throughput times - Celonis ...

Hi, I am trying to count the distinct cases from my activity table, where a condition is satisfied. The condition is that the average ...

#21. TIDB count (distinct case when ...) 跨分区报错

【TiDB 版本】：v4.0.5 【问题描述】： 执行如下SQL时SELECT count(distinct CASE WHEN IS_ARRIVED = 1 THEN BUYER_NICK ELSE NULL END) AS ...

#22. Apache Pig中是否有多個COUNT(DISTINCT CASE WHEN ...

Apache Pig中是否有等效於SQL的 COUNT(DISTINCT CASE WHEN ...) ？ 例如，我正在嘗試執行以下操作: CREATE TABLE email_profile AS SELECT user_id ...

#23. Case statement not working to count distinct value... - Alteryx ...

count (distinct(case when R.dateofconsumption between date_add('day',-1,cast(substr(publicationdate,1,10) as date))

#24. Count distinct in case statement - Oracle Communities

THEN COUNT(DISTINCT A.M_ID) ELSE 0. END) AS UNIQUE_COUNT, /* Not possible */ SUM(CASE WHEN A.DATE BETWEEN TRUNC(SYSDATE,'YEAR') AND ...

#25. Count Distinct and Case When - Data Studio Community

I can get count distinct of campaign as a metric but need to turn it into a dimension. I've tried writing: Case.

#26. Sql Count Distinct Case When - UseEnglishWords.com

8 hours ago Count(distinct CASE when yearsold between 6 and 12 then case else null end) That way, each unique value of the case variable is counted only ...

#27. sql-按條件統計非重複值，count(distinct case when)使用 - ITW01

背景專案中，遇到一個統計需求，從某張表中按照條件分別統計剛開始想到用union all的寫法，太臃腫，後來使用countdistinct case when解決此問題count ...

#28. COUNT(), DISTINCT and NULLs - Snowflake Community

Let us start with the definitions of Count, Distinct and Null. COUNT: Returns either the number of non-NULL records for the specified columns, ...

#29. sql count distinct Code Example

SELECT COUNT (DISTINCT column-name) FROM table-name. ... how to get inserted id in sql · give a column name to values generated from case statement in sql ...

#30. Impala Count Distinct with Case Statement Generates Bad SQL

SELECT COUNT(DISTINCT (CASE WHEN (`string_column` = 'X') THEN `bigint_column` ELSE CAST(NULL AS STRING) END)) as `EXPR_0` FROM `some_table`.

#31. Solved: Count distinct based on condition - Power BI Community

Solved: Hello all, I have been struggling for a couple of days with the following case: This is my data: PART NO ORDER NO TRANSACTION DATE QTY ABC.

#32. MySQL case when count distinct - DQ Courses - Dataquest ...

I'm trying to get counts for distinct videos by viewership tier. I have the following table: vid_id views 1 6 1 10 1 900 2 850 2 125000 3 ...

#33. case count（distinct是什么意思 - 百度知道

case --条件语句 count(distinct ...) --计数（单个XX数）. 本回答由提问者推荐. 已赞过 已踩过<. 你对这个回答的评价是？ 评论 收起 ...

#34. count | ClickHouse Documentation

Counts the number of rows or not-NULL values. ClickHouse supports the following syntaxes for count : count(expr) or COUNT(DISTINCT expr) . count() or ...

#35. SQL CASE WHEN实战大全 - 知乎专栏

SELECT COUNT(DISTINCT CASE WHEN score>=90 THEN `name` ELSE NULL END) AS A, ... 结果集上就可以直接使用count或者sum，而不是count(distinct)，可以提高计算性能。

#36. SQL: Count distinct values from one column based on multiple ...

I am trying to do count distinct values based on multiple criteria. ... SELECT Test, SUM(CASE WHEN Status <> 'Closed' THEN 1 ELSE 0 END) AS "Open Bugs" FROM ...

#37. 关于sql：COUNT个DISTINCT，带有条件 - 码农家园

COUNT DISTINCT with CONDITIONS我想计算某条件下某列中不同项目的数量，例如， ... COUNT(DISTINCT (CASE WHEN entryId > 0 THEN tag END)) AS ...

#38. count distinct case when - 掘金

count distinct case when 技术、学习、经验文章掘金开发者社区搜索结果。掘金是一个帮助开发者成长的社区，count distinct case when技术文章由稀土上聚集的技术大牛和 ...

#39. case when 中计数如何去重- 我欲皆真 - 博客园

利用DISTINCT，但是需要使用COUNT(column) 而不是SUM(1) SELECT count(DISTINCT case is_not_exit when true then enter.

#40. count(distinct case when ... end) does not work #434 - GitHub

select count(DISTINCT CASE WHEN l_quantity > 10 THEN l_orderkey ELSE NULL END) as c from lineitem group by l_orderkey;. The error message is.

#41. SQL Server : COUNT (DISTINCT (CASE) ) - CodeRoad

Вы можете попробовать следующее: select case when count(distinct ft.[currency_name]) > 1 then 'USD' else ft.[currency_name] end as [Currency_Name] from ...

#42. sql - Apache Pig 中是否有等价于多个COUNT(DISTINCT CASE ...

CREATE TABLE email_profile AS SELECT user_id , COUNT(DISTINCT CASE WHEN email_code = 'C' THEN message_id ELSE NULL END) AS clickthroughs , COUNT(DISTINCT ...

#43. How COUNT(DISTINCT [field]) Works in Google BigQuery

In Google BigQuery, however, COUNT(DISTINCT [field]) functions slightly differently due to the massive quantities of data that are often involved when ...

#44. sql - COUNT DISTINCT with CONDITIONS - OStack

You can try this: select count(distinct tag) as tag_count, count(distinct (case when entryId > 0 then tag end)) as positive_tag_count from ...

#45. [Stackoverflow] [Progress OpenEdge ABL] How to Count ...

From research I have tried creating a Count Distinct Case When statement to provide me with the results. Please see below where I have broken ...

#46. mysql count distinct case when_sql-按条件统计非重复值

背景项目中，遇到一个统计需求，从某张表中按照条件分别统计。刚开始想到用union all的写法，太臃肿，后来使用count(distinct case when)解决此问题count数据统计中 ...

#47. COUNT, DISTINCT, and NULLs - Bert Wagner

Interesting, when doing a plain DISTINCT we see there are three unique values, but in our previous query when we wrote COUNT(DISTINCT Col1) a ...

#48. 在MySQL 中取得進階的列計數（第2 部分） - Navicat

COUNT (DISTINCT) 函式傳回具有唯一非NULL 值的列數。因此，包含DISTINCT ... COUNT(DISTINCT CASE WHEN gender = 'male' THEN tel END) male_count,

#49. Custom measure based on a different ... - Looker Community

The problem is that my second measure, in SQL, takes orders in its CASE missing the first one… COUNT(DISTINCT CASE WHEN product.name ...

#50. Hive SQL经典优化案例 - 腾讯云

SELECT dt as DATA_DATE,STRATEGY,AB_GROUP,SOURCE, count(distinct case when lower(event) not like '%push%' and event!=

#51. What is the Difference Between COUNT(*), COUNT(1 ...

COUNT (*); COUNT(1); COUNT(column name); COUNT(DISTINCT column name) ... this case) to every row in the table, then the same function counts ...

#52. select case when number is distinct then 1 else 0 - C# PDF SDK

DISTINCT COUNT in SELECT CASE SQL, If your "case" variable is unique, you can certainly put the distinct keyword in the SQL CASE syntax directly: ...

#53. COUNT function - Amazon Redshift

When used with APPROXIMATE, a COUNT ( DISTINCT expression ) function uses a HyperLogLog algorithm to approximate the number of distinct non-NULL values in a ...

#54. sql count distinct返回一个额外的计数 - 大数据知识库

SELECT COUNT(DISTINCT CASE WHEN action_type IN ('Schedule a Tour', 'Schedule Follow-up', 'Lost') THEN contact_id ELSE 0 END); FROM Traffic_Action.

#55. distinct count of items using case statements

Distinct count with case statement - IT Tool Box, Hi All, I am computing a column using Count( Case when .. then case when..then.​..); but I want to count ...

#56. [TIL] COUNT + CASE WHEN + DISTINCT - velog

중복없이 카운트하기 위해서 DISTINCT를 사용할 수 있는데, CASE문과 함께 쓸 때 위치가 헷갈렸다. 그래서 처음에는 아래와 같이 COUNT할 대상 바로 ...

#57. Count distinct value pairs in multiple columns in SQL - Code ...

You can have a conditional count(distinct) by using this code: SELECT Test, COUNT(DISTINCT "Bug ID") AS "Total Bugs", count(distinct (CASE WHEN "Status" ...

#58. Hive中复杂count语句

SELECT type , count(*) , count(DISTINCT u) , count(CASE WHEN plat=1 THEN u ELSE NULL END) , count(DISTINCT CASE WHEN plat=1 THEN u ELSE NULL ...

#59. Counting Distinct Values in CASE statement - Tableau ...

The problem is that when I created the below calculated field it is counting all the products too. CASE [Sales Stage] WHEN '02 - Sale Closed' ...

#60. 關於SQL語句裡面被除數為0的問題

1樓：匿名使用者. 簡單做的話，可以在除數：(count(distinct case when b.status=1 then b. taskid end)+count(case when b.taskid=0 and b.status=0 ...

#61. SUM and CASE on DISTINCT Column - SQL & PL/SQL

Perhaps you're after something like "count(distinct case when trasnaction_sid like '%LA%' then value end)"? E.g. here's what I think you're after, based on ...

#62. Use Subqueries to Count Distinct 50X Faster | Sisense

Count distinct builds a hash set for each group — in this case, each dashboard_id — to keep track of which values have been seen in which ...

#63. count (sql) - InterSystems Documentation

To count every letter-case variant as a distinct value, use COUNT(DISTINCT(%EXACT(field))). COUNT DISTINCT does not count NULL as a distinct value.

#64. SQL COUNT DISTINCT 函數- 碼上快樂

定義和用法可以一同使用DISTINCT 和COUNT 關鍵詞，來計算非重復結果的數目 ... count(distinct case when photo='1' or photo='2' then id else null ...

#65. How to use SQL COUNT with DISTINCT - Educative.io

SELECT COUNT(DISTINCT column) FROM table;. This statement would count all the unique entries of the attribute column in the table ...

#66. COUNT (DISTINCT) and Other DISTINCT Aggregates - Vertica

Vertica executes queries with multiple distinct aggregates more efficiently when all distinct aggregate columns have a similar number of distinct values.

#67. [SOLVED] COUNT DISTINCT using Query->newExpr()?

I have a custom finder that add some count columns with ... SELECT ( COUNT(( -- double parens breaking sql DISTINCT(( CASE WHEN ...

#68. SQL query to determine that values in a column are unique

Try this: SELECT CASE WHEN count(distinct col1)= count(col1) THEN 'column values are unique' ELSE 'column values are NOT unique' END FROM tbl_name; ...

#69. count distinct case when sas - After School Art Program!

The CASE expression in the second PROC SQL step is a shorthand method that is useful when all the comparisons are with the same column. Count Distinct value ...

#70. The Magic of PROC SQL - LexJansen

of data grouped by another variable (in this case, the treatment). title5 'COUNT of PATID per treat'; proc sql; select trt,count(distinct patid) as COUNT.

#71. Count Distinct Visits per user and grouping them - StackGuides

Also use COUNT() instead of SUM() if you want to count the distinct dates: SELECT user_id, COUNT(DISTINCT CASE WHEN click_date BETWEEN '2020-07-25' AND ...

#72. SQL Server Forums - SQLTeam.com

Could you please help me ? SOLUTION BROUGHT BY nigelrivett. Count(distinct CASE Date WHEN '01/01/2010' THEN Compte ELSE null END) ...

#73. Presto Optimizations for Aggregations Over Distinct Values

SELECT COUNT(DISTINCT ss_customer_sk) FROM tpcds_orc_3000.store_sales ... Query performance worsens in the case of multiple aggregation ...

#74. Calculate Unique Count Where Condition [Data Studio Tutorial]

This video shares 2 methods to calculate distinct numbers when ONE or multiple criteria is met. We'll also ...

#75. domo count distinct case when - Experience Batavia

COUNT (*) function returns the number of items in a group, including NULL and duplicate values. Use Case: IoT. You must have used DISTINCT ...

#76. count(distinct (case when … then … end)) | technote

条件に合致した中での一意な数を取得したい。 □ 環境. Amazon Athena. □ count(distinct). Athenaを利用しているので、読み込むデータ量も減らし ...

#77. PL/SQL count( distinct case when..）的使用 - 爱代码

PL/SQL count( distinct case when..）的使用1.脚本分析2.总结1.脚本分析按科室、两个时间分组后由于人数是不重复的，所以count()函数中要distinct掉 ...

#78. SQL count和case when配合统计给定条件下不重复的记录数

1、我们知道，SQL语句中用count函数统计记录数量，配合distinct关键字可以统计非重复的记录数量。例如： select count(*), count(city_name), ...

#79. Distinct Count - case statement? - COGNOiSe.com - The IBM ...

I get inflated counts when I use this. I've also tried removing the distinct, and changing aggregate Function from Automatic to Count Distinct, ...

#80. Back to the basics: Using DISTINCT with CASE expression

In general whenever we have to use 'distinct' clause along with case statement, it always resides outside the case statement unless we are using ...

#81. SQL queries to create simple applicant / year based table. - EPO

SELECT top 1000 psn_name, COUNT(distinct(case when appln_filing_year = 2010 then tls201_appln.appln_id end)) as '2010', COUNT(distinct(case ...

#82. Distinct count of many fields in a single ES query - Elastic ...

This is the part of mysql query for easy understanding. COUNT(DISTINCT CASE WHEN sm.zygosity = 'Heterozygous' THEN sm.variant_id END) het, COUNT ...

#83. COUNT(DISTINCT "order number") within a date interval?

The property of both is measure and function is sat to COUNT. ... COUNT (DISTINCT CASE WHEN @Select(OrderStatistics\Customer Order Type) IN ...

#84. hive 多字段同时count(distinct)优化_ydc321的专栏-程序员资料

insert overwrite table pcup_logininfo_tmp partition(data_type = 1); select popt_id,; null as sndaid,; count(distinct case when login_date>='2012-02-01' and ...

#85. SQL查找列中不同值的数量 - QA Stack

您可以DISTINCT在COUNT聚合函数中使用关键字： SELECT COUNT(DISTINCT ... 我真的认为您的案件陈述是要说： case when my_col is null then 1 else my_col end.

#86. How to count distinct values over multiple columns using SQL

Method-2 Using Concatenated columns. A simpler method would be to use concatenated columns. copy. SELECT COUNT(DISTINCT(CONCAT(DocumentId, ...

#87. sql — COUNT DISTINCT with CONDITIONS - ti-enxame.com

select count(distinct tag) as tag_count, count(distinct (case when entryId > 0 then tag end)) as positive_tag_count from your_table_name;.

#88. Using DISTINCT with CASE | SQL Brain

I had an interesting situation where I wanted to count DISTINCT rows with variable values. Imagine a table like this: Customer City VIP Acme ...

#89. DISTINCT COUNT in SELECT CASE SQL - Genera Codice

Count (distinct CASE when yearsold between 6 and 12 then case else null end). That way, each unique value of the case variable is counted only once.

#90. SQL DISTINCT | Intermediate SQL - Mode

In this case, you should run the query below that counts the unique values in the month column. SELECT COUNT(DISTINCT month) AS unique_months FROM tutorial.

#91. Count Distinct Not Working in Case Select Oracle SQL

I have a PL/SQL question in which the code fails to count distinct ID's. It does count them, but does not do so distinctly. Anybody have any ...

#92. sql - 带有条件的COUNT DISTINCT - ITranslater

select count(distinct tag) as tag_count, count(distinct (case when entryId > 0 then tag end)) as positive_tag_count from your_table_name;.

#93. count distinct case when sas - Live in Thailand

1 Response to "SAS : Count Distinct Values of Variables" Josh Grab 1 August 2019 at 14:48. The SQL language supports a CASE-WHEN statement.

#94. sas 中count两个条件之和 - 经管之家

sas 中count两个条件之和,求助各位大神，在实际工作中遇到的问题：proc sql;select .,,.,count(distinct case when "A" is not null then ...

#95. Using HLL++ to speed up count-distinct in massive datasets

(Think of this as counting distinct elements in a data stream where there are repeated elements.) This can come in handy when gathering all ...

#96. SQL Count Distinct Select Query Example - Kodyaz.com

Sometimes you wonder the count of distinct values stored in a column rather than the total rows count. In this case running a SELECT statement with Count ...

#97. SQL COUNT() 函数 - 菜鸟教程

SELECT COUNT(DISTINCT column_name) FROM table_name;. 注释：COUNT(DISTINCT) 适用于ORACLE 和Microsoft SQL Server，但是无法用于Microsoft Access。 演示数据库.

#98. Customization of existing Unica Insights reports for Campaign

TreatmentSize END) as NUM_OF_OFFERS_CG, count (distinct (case UA_Treatment.CntrlTreatmtFlag when 0 then UA_Treatment.OfferHistoryID END)) as NUM_OFF_VERS, ...

#99. 大數據分析SQL Server 2016與R全方位應用(電子書)

THEN [MemberID] ELSE NULL END)[第24次購買人數], COUNT(DISTINCT CASE WHEN TransactionID_Seq=25 THEN [MemberID] ELSE NULL END)[第25次購買人數], COUNT(DISTINCT ...