-----------------------------sqlite---------------------------------
abort action add after  all  alter  analyze  and  as  asc  attach  autoincrement 

before begin   between  by 

cascade  case  cast  check  collate  column  commit conflict  constraint  create  cross  current_date  current_time  current_timestamp  database  default  deferrable  deferred  delete  desc  detach  distinct  drop 

each  else  end  escape  except  exclusive  exists  explain  fail  for  foreign  from full

glob group having if

ignore immediate in index indexed initially inner  insert instead intersect into is isnull

join

key

left like limit

match

natural no not notnull null

of offset on or order outer

plan pragma primary

query

raise references regexp reindex release rename replace restrict right rollback  row

savepoint select set

table temp temporary then to transaction trigger

union unique update using

vacuum  values view virtual

when where

---

--------------------mysql------------------

MySQL有如下关键字(谨记)：

add all alter analyze and as asc asensitive

before between bigint binary blob both by

call cascade case change char character check collate column condition connection constraint continue convert create cross current_date current_time current_timestamp current_user cursor

database databases day_hour day_microsecond day_minute day_second dec decimal declare default delayed delete desc describe deterministic distinct distinctrow div double drop dual

each else elseif enclosed escaped exists exit explain

false fetch float float4 float8 for force foreign from fulltext

goto grant group

having high_priority hour_microsecond hour_minute hour_second

if ignore in index infile inner inout insensitive insert int int1 int2 int3 int4 int8 integer interval into is iterate

join

key keys kill

label leading leave left like limit linear lines load localtime localtimestamp lock long longblob longtext loop low_priority

match mediumblob mediumint mediumtext middleint minute_microsecond minute_second mod modifies

natural not no_write_to_binlog null numeric

on optimize option optionally or order out outer outfile

precision primary procedure purge raid0 range read reads real references regexp release rename repeat replace require restrict return

revoke right rlike

schema schemas second_microsecond select sensitive separator set show smallint spatial specific sql sqlexception sqlstate sqlwarning sql_big_result sql_calc_found_rows sql_small_result ssl starting straight_join

table terminated then tinyblob tinyint tinytext to trailing trigger true

undo union unique unlock unsigned update usage use using utc_date utc_time utc_timestamp

values varbinary varchar varcharacter varying

when where while with write

x509 xor

year_month

zerofill