9.0 Overview. We call the collection of functions for manipulating tables q-sql, since many of them resemble their SQL counterparts in form or function. The ...
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Q-SQL expressions have their own syntax rules, with optional dependent phrases, by, from and where, and can include definitions of new, derived columns.
Nov 12, 2014 · Try this (in pseudo-code): ( (t1.a != t2.a) and (t1.b != t2.b) ) or ( (t1.a != t2.a) and (t1.b != t2.b) ). Kdb/Q reads left-of-right so it ...
The QSqlQuery class provides a means of executing and manipulating SQL statements.
The OR command is used with WHERE to include rows where either condition is true. The following SQL statement selects all fields from "Customers" where city is ...
Nov 7, 2014 · You can do: select from table where ((COLA like "string1")&(COLB like "string2"))|((COLA like "string3")&(COLB like "string4")).
The SQL OR Operator. The WHERE clause can contain one or more OR operators. The OR operator is used to filter records based on more than one condition, ...
Queries in q are shorter and simpler and extend the capabilities of sql. The main query expression is the 'select expression', which in its simplest form ...
Apr 22, 2020 · Hey, I am trying to develop a tool to process raw data which I receive from a MS SQL database and store the processed (sorted) data, ...
q treats ordinary files as database tables, and supports all SQL constructs, such as WHERE , GROUP BY , JOIN s, etc. It supports automatic column name and type ...