kdbfaq

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How can I experiment on a production kdb …

How can I experiment on a production kdb while keeping the data free from accidental damage? View Post

What is a virtual column?

What is a virtual column? View Post

What is the difference between the functions xcol …

What is the difference between the functions xcol and xcols? View Post

What should I know about the sym file, …

What should I know about the sym file, and why back it up? View Post

How do I get the day of the …

How do I get the day of the week? View Post

Is the output of meta available for use …

Is the output of meta available for use in my program? View Post

Who uses time series or column-oriented databases and …

Who uses time series or column-oriented databases and why? View Post

How do I delete a function in namespace .…

How do I delete a function in namespace .z? View Post

How do I choose whether to make a …

How do I choose whether to make a field a symbol or string? View Post

How can I group all (other) columns?

How can I group all (other) columns? View Post

How can I slice a vector into a …

How can I slice a vector into a series of vectors of length n? View Post

Can I retrieve kdb data from my web …

Can I retrieve kdb data from my web browser and save the query results to a csv file for viewing in a spreadsheet? View Post

Is the q language simply syntactic sugar on …

Is the q language simply syntactic sugar on top of k? View Post

I noticed a list with a `s# prefix …

I noticed a list with a `s# prefix attached. What does this mean? View Post

What does ‘\l .’ or ‘system “l .”‘ do?

What does ‘\l .’ or ‘system “l .”‘ do? View Post

How do I comment q code?

How do I comment q code? View Post

Can a historical database be partitioned on multiple …

Can a historical database be partitioned on multiple levels – say, by date, then symbol? View Post

‘exit’ fails to terminate kdb console. How do …

‘exit’ fails to terminate kdb console.  How do I gracefully exit a kdb process? View Post

How do i interpret the output of function .…

How do i interpret the output of function .Q.w[]? View Post

I’ve setup many views based on a …

I’ve setup many views based on a single large table. How much of a performance penalty will I pay? View Post


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