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    • jinxing •    Application   •    246 View 246 View    •   2024-08-07 18:08:07

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

    • jinxing •    Application   •    314 View 314 View    •   2024-08-06 16:02:56

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

    • jinxing •    Application   •    316 View 316 View    •   2024-08-05 17:30:22

      Get duplicate records from a csv file and sort them 

    • jinxing •    Application   •    228 View 228 View    •   2024-08-02 14:02:51

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

    • jinxing •    Application   •    216 View 216 View    •   2024-08-01 15:37:08

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

    • jinxing •    Application   •    229 View 229 View    •   2024-07-31 18:28:00

      Merge multiple files, remove duplicates and sort the result 

    • jinxing •    Application   •    203 View 203 View    •   2024-07-29 09:22:46

      Use Java to perform wordcount 

    • jinxing •    Application   •    268 View 268 View    •   2024-07-26 08:32:05

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

    • jinxing •    Application   •    156 View 156 View    •   2024-07-24 19:32:39

      Find the row containing the maximum value from a text file 

    • jinxing •    Application   •    173 View 173 View    •   2024-07-24 09:43:49

      Parse a csv file having two structures 

    • jinxing •    Application   •    180 View 180 View    •   2024-07-22 18:04:30

      Convert a json string to a csv file 

    • jinxing •    Application   •    263 View 263 View    •   2024-07-22 09:51:40

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

    • jinxing •    Application   •    153 View 153 View    •   2024-07-18 18:02:44

      Parse a text file containing quotation marks 

    • jinxing •    Application   •    210 View 210 View    •   2024-07-18 10:15:40

      Convert a log file to a standard csv file 

    • jinxing •    Application   •    177 View 177 View    •   2024-07-16 18:13:53

      Filter a csv file and generate a new file 

    • jinxing •    Application   •    136 View 136 View    •   2024-07-16 09:52:58

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

    • jinxing •    Application   •    136 View 136 View    •   2024-07-15 15:29:58

      SQL, compute the inventory capacity 

    • jinxing •    Application   •    154 View 154 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   •    165 View 165 View    •   2024-07-11 18:45:57

      Combine csv files of same structure 

    • jinxing •    Application   •    311 View 311 View    •   2024-07-09 15:42:09

      Read the last line of the csv file 

    • jinxing •    Application   •    214 View 214 View    •   2024-07-08 08:50:24

      Judge whether two csv files have same content 

    • jinxing •    Application   •    210 View 210 View    •   2024-07-04 15:54:29

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

    • jinxing •    Application   •    253 View 253 View    •   2024-07-04 15:08:50

      Convert irregular format CSV to standard JSON strings 

    • jinxing •    Application   •    218 View 218 View    •   2024-07-01 11:24:48

      Rearrange an irregular text file into a two-dimensional table 

    • jinxing •    Application   •    276 View 276 View    •   2024-07-01 08:39:05

      Convert a rowwise CSV file to a multilayer JSON string 

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

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