WebMar 15, 2024 · COUNT (DISTINCT CASE WHEN SopOrder_0.SooParentOrderReference LIKE 'INT%' THEN SopOrder_0.SooParentOrderReference END) AS num_int. You don't specify the error, but the problem is probably that the THEN is returning a string and the ELSE a … WebIf the COUNT DISTINCT function encounters NULL values, it ignores them unless every value in the specified column is NULL. If every column value is NULL, the COUNT DISTINCT function returns zero (0). The UNIQUE keyword has the same meaning as the DISTINCT keyword in COUNT functions. The UNIQUE keyword instructs the database server to …
Distinct count with case statement - Oracle Forum
WebYou can use the DISTINCT clause within the COUNT function. For example, the SQL statement below returns the number of unique departments where at least one employee makes over $55,000 / year. SELECT COUNT (DISTINCT department) AS "Unique departments" FROM employees WHERE salary > 55000; WebOracle CASE expression allows you to add if-else logic to SQL statements without having to call a procedure. The CASE expression evaluates a list of conditions and returns one of the multiple possible results. You can use a CASE expression in any statement or clause that accepts a valid expression. cycloplegics and mydriatics
Learn Oracle COUNT() Function By Practical Examples
WebMar 15, 2024 · This query results in the count of items on each order and the total value of the order. Let’s add some more calculations to the query, none of them poses a challenge: SELECT salesorderid, Count(*) AS ItemsPerOrder, Sum(unitprice * orderqty) AS Total, Count(DISTINCT productcategoryid) CategoriesPerOrder, Count(DISTINCT color) … WebQuery The Table Using The LISTAGG Function. Log in to the PDB as HR. sqlplus hr@PDB1 Enter password: password Query the HR.CITIES table to order the rows by city code and use the LISTAGG function to concatenate the resulting city names for each city code into a single string. SELECT code, LISTAGG(name, ',') WITHIN GROUP (ORDER BY code) FROM … WebSql 如何使用嵌套的Case查询获得不同的计数?,sql,count,distinct,case,Sql,Count,Distinct,Case,我有一个类似的问题: 我有一个很大的where部分,它进行一些过滤,然后当我在做不同的分类时,我想在select部分进行过滤 我的情况不同,我需要使用计数不同的用例,而不是求和:您有多个订单,并且想要计算特定 ... cyclopithecus