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    • jinxing •    Application   •    226 View 226 View    •   2024-08-12 09:27:04

      SQL, get historical status of each ID 

    • jinxing •    Application   •    320 View 320 View    •   2024-08-08 14:22:34

      SQL, get median of all columns in each row 

    • jinxing •    Application   •    286 View 286 View    •   2024-08-07 18:08:07

      SQL, split values of two columns respectively and count members of their intersection 

    • jinxing •    Application   •    344 View 344 View    •   2024-08-06 16:02:56

      SQL, Set different flags for different groups according to whether there are duplicate values 

    • jinxing •    Application   •    383 View 383 View    •   2024-08-05 17:30:22

      Get duplicate records from a csv file and sort them 

    • jinxing •    Application   •    268 View 268 View    •   2024-08-02 14:02:51

      Retrieve multiple columns from a csv file to generate a new file 

    • jinxing •    Application   •    239 View 239 View    •   2024-08-01 15:37:08

      Clear duplicate lines and lines having missing values from a csv file 

    • jinxing •    Application   •    282 View 282 View    •   2024-07-31 18:28:00

      Merge multiple files, remove duplicates and sort the result 

    • jinxing •    Application   •    256 View 256 View    •   2024-07-29 09:22:46

      Use Java to perform wordcount 

    • jinxing •    Application   •    322 View 322 View    •   2024-07-26 08:32:05

      Retrieve a specified column from a csv file and concatenate its values as a string 

    • jinxing •    Application   •    187 View 187 View    •   2024-07-24 19:32:39

      Find the row containing the maximum value from a text file 

    • jinxing •    Application   •    217 View 217 View    •   2024-07-24 09:43:49

      Parse a csv file having two structures 

    • jinxing •    Application   •    213 View 213 View    •   2024-07-22 18:04:30

      Convert a json string to a csv file 

    • jinxing •    Application   •    324 View 324 View    •   2024-07-22 09:51:40

      Read the first 100 lines from a huge csv file on S3 

    • jinxing •    Application   •    177 View 177 View    •   2024-07-18 18:02:44

      Parse a text file containing quotation marks 

    • jinxing •    Application   •    253 View 253 View    •   2024-07-18 10:15:40

      Convert a log file to a standard csv file 

    • jinxing •    Application   •    208 View 208 View    •   2024-07-16 18:13:53

      Filter a csv file and generate a new file 

    • jinxing •    Application   •    170 View 170 View    •   2024-07-16 09:52:58

      SQL, split up a field according to whether the specified characters are unique or not 

    • jinxing •    Application   •    164 View 164 View    •   2024-07-15 15:29:58

      SQL, compute the inventory capacity 

    • jinxing •    Application   •    183 View 183 View    •   2024-07-15 09:21:32

      Get two numbers from each of the two sets of numbers and let them equal to a specified value 

    • jinxing •    Application   •    204 View 204 View    •   2024-07-11 18:45:57

      Combine csv files of same structure 

    • jinxing •    Application   •    437 View 437 View    •   2024-07-09 15:42:09

      Read the last line of the csv file 

    • jinxing •    Application   •    238 View 238 View    •   2024-07-08 08:50:24

      Judge whether two csv files have same content 

    • jinxing •    Application   •    268 View 268 View    •   2024-07-04 15:54:29

      Filter a CSV file according to condition and output result as a list 

    • jinxing •    Application   •    290 View 290 View    •   2024-07-04 15:08:50

      Convert irregular format CSV to standard JSON strings 

    «1 ... 3 4 5 6 7 8 9 10 11 12 ... 29»

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