Oracle connect by level duplicate records
Sorted by: 5 Currently, your CONNECT BY only limits the hierarchical level, and doesn't provide any condition for matching child rows to parent rows. This means that in a table with multiple rows, every row is a child of every other row. This is going to produce a massive result set. WebMay 13, 2013 · Connect By statement returning duplicate rows I'm trying to use a connect by statement to order a table in a hierarchical format. Each row has an EntityKey and a ParentEK. Below is just example data to explain what I'm trying to do. TABLE: Objkey ObjId ParKey 1 Object1 0 2 Object2 1 3 Object3 1 4 Object4 1 5 Object5 2 6 Object6 2 7 Object7 2
Oracle connect by level duplicate records
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WebJul 31, 2024 · Duplicate rows on condition. I would like to duplicate table rows basing a condition. for example, I want to duplicate 2 times more each row having "value" = " X1 " to obtain the result below : I tried to do that using connect by level, but I can't specify condition on "value" = " X1 " : with duplic as (select level l from dual connect by level ... WebDec 9, 2013 · connect by subtree.parent_id=prior subtree.id; Database version : 11.2.0.1.0 Depending on the user, the result order is different : one gives for values : 1-2-2 (duplicate on '2') another gives 2-1-2 (still duplicate on '2') BUT on another database, same version, it gives : 1-2 (what's expected)
WebSep 14, 2024 · If you are using Oracle 12c or higher, you can CROSS APPLY with a CONNECT BY LEVEL query generating the numbers from 1 to VAL_COL. Something like this (I don't …
WebTry It! Complete the following query to return employees in depth-first order. You should sort employees with the same manager by first_name: select level, employee_id, first_name, … WebSep 8, 2024 · The connect by level clause generates a row for each value. It finds how many values there are by: Using replace ( str, ',' ) ... While PTFs can accept cursors, making a generic PTF that converts CSVs stored in a table to rows is hard. Luckily Oracle Database 19c offers a better way: SQL macros!
WebFeb 23, 2011 · now using Connect By nocycle Prior Child=Parent will give duplicate record because A11 will comes second time for D1 and children of A11 will come again and in …
WebJun 4, 2015 · If your table grows to 1000s or more records, this check will get slower and slower. The most efficient way to do this is: 1. Write a stored PLSQL function that accepts two values (for your columns1 and 2) and does a query to see if a record already exists with this combination. If yes, return "Y", else return "N". 2. how to stop ads on gmail accountWebYou can specify at the enterprise level whether to search for duplicates when creating person records using HCM Data Loader or the new hire flows (except the classic pages). Use the Manage Enterprise HCM Information task in the Setup and Maintenance work area to set duplicate checks when importing or creating person records. how to stop ads on huluWebApr 13, 2024 · 5 Ways to Connect Wireless Headphones to TV. Design. Create Device Mockups in Browser with DeviceMock. 3 CSS Properties You Should Know. The Psychology of Price in UX. How to Design for 3D Printing. Is the Designer Facing Extinction? Responsive Grid Layouts With Script. how to stop ads on crunchyroll for freeWebApr 26, 2012 · with data as (select level l from dual connect by level <= 5) select * from scott.dept, data order by deptno, l even when I tried to create a table w/ this data or to … how to stop ads on a websiteWebJun 11, 2015 · Assumption: You want to find duplicate rows! -- first define duplicate. -- assuming that id defines duplicate SQL> col the_desc format a10 SQL> r 1* select * from t … how to stop ads on gogoanimeWebwith a as ( select 'a,b,c' letter from dual union all select 'g,h' from dual union all select 'm,k,l' from dual ) select a.*, b.column_value from a, table (cast (multiset ( select regexp_substr (letter,' [^,]+',1,level) from dual connect by level <= regexp_count (letter, ',')+1) as sys.odciVarchar2List)) b; LETTER COLUMN_VALUE ------ … react workflow diagramWebCONNECT BY LEVEL <= 365 The theory behind this is that you connect a row to every row of a level higher by omitting the PRIOR keyword. You have no restriction on joining children to parent rows. And if we omit the START WITH clause too, … react workflow