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sql(179) csv(56) json(28) group(18) sort(10) conditional grouping(9) order-based grouping(8) filtering(7) recursion(6) topn(6) distinct(5) difference(4) cursor(3) transposition(3) judge(2) large file(2) row number(2) max(2) grouping & aggregation(2) loop(2) sort by column(1) more>>> average(1) rank calculation(1) maximum value(1) string(1) delete(1) intra-group sequence numbers(1)
sql(179) csv(56) json(28) group(18) sort(10) conditional grouping(9) order-based grouping(8) filtering(7) recursion(6) topn(6) distinct(5) difference(4) cursor(3) transposition(3) judge(2) large file(2) row number(2) max(2) grouping & aggregation(2) loop(2) sort by column(1) more>>> average(1) rank calculation(1) maximum value(1) string(1) delete(1) intra-group sequence numbers(1)
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blackduckie • Application • 1 Reply 500 View • 2022-04-24 20:03:25
How to Convert a JSON Request into a List of Specific Format n Spring?
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blackduckie • Application • 1 Reply 1,577 View • 2022-04-24 18:55:40
How to Convert CSV To Nested JSON in Java
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blackduckie • Application • 1 Reply 1,436 View • 2022-04-24 18:32:02
How to Read CSV Using Column Name in Java
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blackduckie • Application • 1 Reply 854 View • 2022-04-24 18:18:39
Get Key Values of Nested JSON Objects
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blackduckie • Application • 1 Reply 458 View • 2022-04-22 15:32:48
How to Capture Field Values in a CSV File Using BufferedReader
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blackduckie • Application • 1 Reply 605 View • 2022-04-21 09:37:26
Java Streams Collect Excel CSV to a List Filtering Based on the Sum of a Column
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blackduckie • Application • 1 Reply 471 View • 2022-04-21 09:34:40
Grouping Duplicates in CSV file and Ranking Data Based on Certain Values
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blackduckie • Application • 1 Reply 391 View • 2022-04-20 10:08:21
SUM Values by Sequence Number and Group by Flag
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blackduckie • Application • 1 Reply 493 View • 2022-04-24 20:20:32
Spark SQL Find the Number of Extensions for a Record
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blackduckie • Application • 1 Reply 395 View • 2022-04-24 20:22:07
Window Function Based on Transition of a Column Value
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blackduckie • Application • 1 Reply 415 View • 2022-04-24 20:23:19
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blackduckie • Application • 1 Reply 455 View • 2022-04-24 20:24:27
Inner Join of an EXCEPT Subquery on Column Names That Do Not Appear in the Output
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blackduckie • Application • 1 Reply 496 View • 2022-04-24 20:25:34
SQL Question Using PIVOT, No Aggregation Column
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blackduckie • Application • 1 Reply 394 View • 2022-04-24 20:26:32
Is There a Faster Way to Find the Order of a COLUMN
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blackduckie • Application • 1 Reply 457 View • 2022-04-24 20:27:32
Finding Duplicate Values in Multiple Colums in a SQL Table and Count for chars
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blackduckie • Application • 1 Reply 483 View • 2022-04-24 20:31:04
GROUP BY 3 Values of the Same Column
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blackduckie • Application • 1 Reply 387 View • 2022-04-24 20:31:58
Check if Values Are the Same for Each Row over Criteria in Different Other Columns
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blackduckie • Application • 1 Reply 454 View • 2022-04-24 20:33:32
Transforming Corresponding Start-Stop Time in Rows to Columns
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blackduckie • Application • 1 Reply 493 View • 2022-04-24 20:34:49
How to Calculate Some Specific Data Function from the Data of a Large CSV File
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blackduckie • Application • 1 Reply 1,294 View • 2022-04-24 20:36:09
How to Remove a Row from a CSV File If That Row Contains a Certain Data in Java
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