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Reference card

Keywords

abscorejgtimelikeminsprevscovsystemwavg

acoscosemahcloselj ljfmmaxpriorsdevtableswhere

aj aj0countenlisthcountloadmminrandselecttanwhile

ajf ajf0covevalhdellogmmuranksettilwithin

allcrossexcepthopenlowermodratiossetenvtrimwj wj1

andcsvexechsymlsqmsumrazeshowtypewsum

anycutexitiascltimenegread0signumuj ujfxasc

ascdeleteexpidescltrimnextread1sinungroupxbar

asindeltasfbyifmavgnotreciprocalsqrtunionxcol

asofdescfillsij ijfmaxnullrevalssupdatexcols

atandevfirstinmaxsorreversessrupperxdesc

attrdifferfkeysinsertmcountoverrloadstringupsertxexp

avgdistinctflipintermd5parserotatesublistvaluexgroup

avgsdivfloorinvmdevpeachrsavesumvarxkey

bin binrdogetkeymedpjrtrimsumsviewxlog

ceilingdsavegetenvkeysmetaprdsavesvviewsxprev

colseachgrouplastminprdsscansvarvsxrank

By category

controldo, exit, if, while
envgetenv, gtime, ltime, setenv
interpreteval, parse, reval, show, system, value
iodsave, get, hclose, hcount, hdel, hopen, hsym, load, read0, read1, rload, rsave, save, set
iterateeach, over, peach, prior, scan
joinaj aj0, ajf ajf0, asof, ej, ij ijf, lj ljf, pj, uj ujf, wj wj1
listcount, cross, cut, enlist, except, fills, first, flip, group, in, inter, last, mcount, next, prev, raze, reverse, rotate, sublist, sv, til, union, vs, where, xprev
logicall, and, any, not, or
mathabs, acos, asin, atan, avg, avgs, ceiling, cor, cos, cov, deltas, dev, div, ema, exp, floor, inv, log, lsq, mavg, max, maxs, mdev, med, min, mins, mmax, mmin, mmu, mod, msum, neg, prd, prds, rand, ratios, reciprocal, scov, sdev, signum, sin, sqrt, sum, sums, svar, tan, var, wavg, within, wsum, xexp, xlog
metaattr, null, tables, type, view, views
querydelete, exec, fby, select, update
sortasc, bin binr, desc, differ, distinct, iasc, idesc, rank, xbar, xrank
tablecols, csv, fkeys, insert, key, keys, meta, ungroup, upsert, xasc, xcol, xcols, xdesc, xgroup, xkey
textlike, lower, ltrim, md5, rtrim, ss, ssr, string, trim, upper

.Q.id (sanitize), .Q.res (reserved words)

Operators

. Apply, Index, Trap, Amend @ Apply At, Index At, Trap At, Amend At
$ Cast, Tok, Enumerate, Pad, mmu
! Dict, Enkey, Unkey, Enumeration, Flip Splayed, Display, internal, Update, Delete, lsq
? Find, Roll, Deal, Enum Extend, Select, Exec, Simple Exec, Vector Conditional
+ - * %Add, Subtract, Multiply, Divide
= <> ~Equals, Not Equals, Match
< <= >= > Less Than, Up To, At Least, Greater Than
| &Greater (OR), Lesser, AND
# Take, Set Attribute _ Cut, Drop : Assign
^ Fill, Coalesce , Join ' Compose
0: 1: 2:File Text, File Binary, Dynamic Load
0 ±1 ±2 ±nwrite to console, stdout, stderr, handle n

Overloaded glyphs

Iterators

maps accumulators ' Each, each, Case /: Each Right / Over, over ': Each Parallel, peach \: Each Left \ Scan, scan ': Each Prior, prior

Execution control

.[f;x;e] Trap : Return do exit $[x;y;z] Cond @[f;x;e] Trap-At ' Signal if while

Debugging

Other

` pop stack :: identity \x system cmd x . push stack generic null \ abort global amend \\ quit q set view / comment

() precedence [;] expn block {} lambda ` symbol (;) list argt list ; separator `: filepath ([]..) table

Attributes

g grouped p parted s sorted u unique

Set Attribute

Command-line options and system commands

file
\atables\rrename
-bblocked-s \ssecondary processes
\b \Bviews-S \Srandom seed
-c \cconsole size-t \ttimer ticks
-C \CHTTP size\tstime and space
\cdchange directory-T \Ttimeout
\ddirectory-u -U \uusr-pwd
-e \eerror traps-udisable syscmds
-E \ETLS server mode\vvariables
\ffunctions-w \wmemory
-g \ggarbage collection-W \Wweek offset
\lload file or directory\xexpunge
-l -Llog sync-z \zdate format
-o \oUTC offset\1 \2redirect
-p \plistening port\_hide q code
-P \Pdisplay precision\terminate
-qquiet mode\toggle q/k
-r \rreplicate\\quit

system
Command-line options, System commands, OS commands

Datatypes

Basic datatypes n c name sz literal null inf SQL Java .Net ------------------------------------------------------------------------------------ 0 * list 1 b boolean 1 0b Boolean boolean 2 g guid 16 0Ng UUID GUID 4 x byte 1 0x00 Byte byte 5 h short 2 0h 0Nh 0Wh smallint Short int16 6 i int 4 0i 0Ni 0Wi int Integer int32 7 j long 8 0j 0Nj 0Wj bigint Long int64 0 0N 0W 8 e real 4 0e 0Ne 0We real Float single 9 f float 8 0.0 0n 0w float Double double 0f 0Nf 10 c char 1 " " " " Character char 11 s symbol ` ` varchar 12 p timestamp 8 dateDtimespan 0Np 0Wp Timestamp DateTime (RW) 13 m month 4 2000.01m 0Nm 14 d date 4 2000.01.01 0Nd 0Wd date Date 15 z datetime 8 dateTtime 0Nz 0wz timestamp Timestamp DateTime (RO) 16 n timespan 8 00:00:00.000000000 0Nn 0Wn Timespan TimeSpan 17 u minute 4 00:00 0Nu 0Wu 18 v second 4 00:00:00 0Nv 0Wv 19 t time 4 00:00:00.000 0Nt 0Wt time Time TimeSpan

Columns: n short int returned by type and used for Cast, e.g. 9h$3 c character used lower-case for Cast and upper-case for Tok and Load CSV sz size in bytes inf infinity (no math on temporal types); 0Wh is 32767h

RO: read only; RW: read-write

Other datatypes 20-76 enums 77 anymap 104 projection 78-96 77+t – mapped list of lists of type t 105 composition 97 nested sym enum 106 f' 98 table 107 f/ 99 dictionary 108 f\ 100 lambda 109 f': 101 unary primitive 110 f/: 102 operator 111 f\: 103 iterator 112 dynamic load

Above, f is an applicable value.

Nested types are 77+t (e.g. 78 is boolean. 96 is time.)

Cast $: where char is from the c column above char$data:CHAR$string

dict:`a`b!…
table:([]x:…;y:…)
date.(year month week mm dd)
time.(minute second mm ss)
milliseconds: time mod 1000

Namespaces

.h (markup)

HTTP, markup and data conversion.

.j (JSON)

De/serialize as JSON.

.m (memory backed files)

Memory backed by files.

.Q (utils)

Utilities: general, environment, IPC, datatype, database, partitioned database state, segmented database state, file I/O, debugging, profiling.

.z (environment, callbacks)

Environment, callbacks