I have a table built like so:
tab: ([]col1:();col2:())
`tab insert (`testsym; "testchararr")
I now want to select the row where col2 has the value "testchararr". I have tried like so:
select from tab where col2 = "test"
but this always returns 'length error.
How can I query based on the value of a char array? Thanks
Use "like" or an adverb. e.g.
q)select from tab where col2 like "testchararr"
col1 col2
---------------------
testsym "testchararr"
q)select from tab where col2~\:"testchararr"
col1 col2
---------------------
testsym "testchararr"
q)select from tab where col2 like "test"
col1 col2
---------
q)select from tab where col2~\:"test"
col1 col2
---------
I advise checking the speed of each method. For more examples of qsql like in use see: http://www.timestored.com/b/forums/topic/string-functions-like-search-replace-regex/
Have figured this one out:
I need to use like instead of =
i.e.
select from tab where col2 like "test"