connect-by
SQL Optimization: CONNECT BY ... START WITH
I have a query using CONNECT BY and START WITH statement like below. The query in the IN clause took less than 5 seconds to run and returns 3000 rows. fact_table contains 20M of records. How can I opt[详细]
2023-04-13 03:09 分类：问答Fast way to generate concatenated strings in Oracle [duplicate]
This question already has answers here: SQL Query to concatenate column values from multiple rows in Oracle[详细]
2023-04-06 19:41 分类：问答How to make CONNECT BY parameter optional
I have a procedure that uses Connect By SELECT开发者_开发百科 <lots of fields> FROM Group g[详细]
2023-04-06 07:06 分类：问答Is there a method to ORDER BY managers DESCENDING in an Oracle CONNECT BY query?
In this scenerio... CREATE TABLE emp ( empnoNUMBER(4) NOT NULL, enameVARCHAR2(10), jobVARCHAR2(9), mgrNUMBER(4),[详细]
2023-03-30 15:06 分类：问答CONNECT BY or hierarchical queries in RDBMS other than Oracle
Oracle ships with a very handy feature. You can create hierarchical queries (recursive behaviour) using the following clause:[详细]
2023-03-14 02:50 分类：问答i want to get just the end parent for each child using oracle connect by , start with statement
I am using start with , connect by statement to get data recursivly,开发者_JS百科 i am getting all parent - child but i just want to get the end parent for each child.[详细]
2023-02-06 09:17 分类：问答Correlated row-generating query in Oracle
Given this starting CTE: WITH Sections AS ( SELECT 1 Section, 1 StartUnit, 5 EndUnit FROM DUAL UNION ALL SELECT 2, 0, 2 FROM DUAL[详细]
2023-02-05 16:05 分类：问答Can I create a custom expression without using the where clause?
While I have already solved this issue in a previous question using a native query. I am now wondering if it is possible to create a custom expression that is usable in a Criteria without using the wh[详细]
2023-01-12 20:01 分类：问答Mixing together Connect by, inner join and sum with Oracle
I need help with a oracle query. Here is my setup: I have 2 tables called respectively \"tasks\" and \"timesheets\". The \"tasks\" table is a recursive one, that way each task can have multiple subt[详细]
2023-01-01 10:35 分类：问答薛平贵与王宝钏主题曲（薛平贵与王宝钏主题曲介绍）？
大家好，伊人来为大家解答以上问题。薛平贵与王宝钏主题曲，薛平贵与王宝钏主题曲介绍开发者_StackOverflow中文版很多人还不知道，现在让我们一起来看看吧！[详细]
2022-12-18 21:19 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
加载中,请稍侯......