david_bieber
New Contributor
since ‎2013.03.25
‎2021.06.14

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Hi Group,I am encountering an access error when I try to overwrite a compressed file which I can find no work around.For instance when trying to change an entry on a compressed file.z.zd17;2;6)`:tcompress set asc 10000000?100; `:tcompress set @[get ...
Hi All,I have a large files of around 500mb with around 25 columns which have a imported into KDB.The file contains a mixture of symbols, varchar and integers in the table which I call tXFor instance a subset of the meta data I import looks like this...
Hi,I would like to modify various entries in a splayed table that contains char vectors but not too sure how to do thisfor instance if I create the following splay`:c:/db/t/ set ([] ti:09:30:00 09:31:00; p:101.0 102.0f; id:`:c:/db/sym?`AA`BB; des"A ...
Hi KDB Group,I am try to get a extract a subset of a list using sublist but it doesn't works for a list with size greater than 1 if I specifly sublist[start, length]For instance if I want to extract the first 2 number from the list it works2 sublist ...
Hi,I have two further questions about loading instances of tables into kdb - forgive me if this is obvious1) What is the best way to check for a loaded instance of a table in the namespace? Is the follow the best way to do this any((tables `.) = `MyT...