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jinxing • Desktop • 350 View • 2024-09-05 11:06:03
Search for a specified string across the whole table
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jinxing • Application • 429 View • 2024-09-05 11:04:04
SQL, in each group modify the null value of a specified column as its neighboring value
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jinxing • Application • 489 View • 2024-09-04 15:43:53
SQL, extract unique values of JSON format field from each group
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jinxing • Application • 348 View • 2024-09-03 16:26:51
Parse a csv file having a primary-sub tables structure
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jinxing • Desktop • 428 View • 2024-09-03 16:24:47
Find how many times two specified members will be contained in a series of sets
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jinxing • Application • 290 View • 2024-09-02 16:10:39
Process a large csv file with parallel processing
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jinxing • Desktop • 272 View • 2024-09-02 16:09:13
Split each row into multiple rows according to the specified rule
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jinxing • Desktop • 237 View • 2024-08-30 15:09:56
Concatenate column titles corresponding to empty cells
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jinxing • Application • 208 View • 2024-08-30 11:25:06
Split values of a field in a database table and transform it to new fields
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jinxing • Application • 241 View • 2024-08-28 14:34:41
Get the whole group where at least one member meets the specified condition
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jinxing • Desktop • 305 View • 2024-08-27 16:25:35
Combine cell values of every 3 rows under each column into one cell
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jinxing • Desktop • 384 View • 2024-08-26 14:10:54
Get desired data every N rows and combine them into one row
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jinxing • Application • 298 View • 2024-08-23 15:29:46
Java, perform COUNT on each group of a large csv file
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