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07-29-2008
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Lookup on a file
Hi,
I have the following requirement. I have one lookup file which contains 15 columns and 7000 records. Ex: 123,MEDICA,134,145,1178,123,678,345,2345,HP,COL,K12,SR,OX,78919 I have input file which contains 14 columns and 20 million records.Some times the record count is more than 20 million. I need to match the first 14 columns with 14 columns in the lookup file and if matches i need the 15 the column. Can any one please help me and give me some code which will process very effeciently. I need to finish this process less than 20 minutes. Can any one please suggest me how can we acheive this using ksh or even perl script is also good. Thanks |
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07-29-2008
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