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I have tried to search for the solution online for hours now, but all examples seem to be geared towards deleting duplicates where the whole row, or all of the row minus one variable, match. I need to delete duplicate IDs and their corresponding rows when the other variable...
0 링크 번역 댓글:Shayma2016년 9월 22일 Hi i have csv files with millions of rows and hundreds of coloumns that i want to open\read in order to compare the files, remove duplicates and save the new file as csv also, and many o...
Thank you for a bug report. Verified just as described: ... mysql> insert into t (b) select b from t; Query OK, 393216 rows affected (5.97 sec) Records: 393216 Duplicates: 0 Warnings: 0 mysql> select count(*) from t; +---+ | count(*) | +---+ | 786432 | +---+ 1 row...
I have tried to search for the solution online for hours now, but all examples seem to be geared towards deleting duplicates where the whole row, or all of the row minus one variable, match. I need to delete duplicate IDs and their corresponding rows when the other variables...
i have csv files with millions of rows and hundreds of coloumns that i want to open\read in order to compare the files, remove duplicates and save the new file as csv also, and many other modifications.. when i used csvreader the PC stuck! so ...
I want to delete duplicates where ID and program_id are matching. But I want to keep the duplicate with the most recent collection_yr. For example, if two observations have the same ID and program_id but the completion_yr is 2009 and 2010, I want to keep the observation with the 201...
you can remove duplicates by using proc sort. But example you have given is not clear. can you elaborate your example, that is explain in brief, why you want to delete a particular id. 0 Likes eunsik Calcite | Level 5 Re: can i delete row? Posted 08-01-2017 12:40 AM (1921...