1 ;;;; -*- Mode: LISP; Syntax: ANSI-Common-Lisp; Base: 10 -*-
2 ;;;; *************************************************************************
6 ;;;; Definition of SQL operations used with the symbolic SQL syntax.
8 ;;;; This file is part of CLSQL.
10 ;;;; CLSQL users are granted the rights to distribute and use this software
11 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
12 ;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
13 ;;;; *************************************************************************
15 (in-package #:clsql-sys)
17 ;; Keep a hashtable for mapping symbols to sql generator functions,
18 ;; for use by the bracketed reader syntax.
20 (defvar *sql-op-table* (make-hash-table :test #'equal))
23 ;; Define an SQL operation type.
25 (defmacro defsql (function definition-keys &body body)
27 (defun ,function ,@body)
28 (let ((symbol (cadr (member :symbol ',definition-keys))))
29 (setf (gethash (if symbol (symbol-name-default-case symbol) ',function)
36 (defsql sql-query (:symbol "select") (&rest args)
37 (apply #'make-query args))
39 (defsql sql-any (:symbol "any") (&rest rest)
40 (make-instance 'sql-function-exp
41 :name 'any :args rest))
43 (defsql sql-some (:symbol "some") (&rest rest)
44 (make-instance 'sql-function-exp
45 :name 'some :args rest))
47 (defsql sql-all (:symbol "all") (&rest rest)
48 (make-instance 'sql-function-exp
49 :name 'all :args rest))
51 (defsql sql-not (:symbol "not") (&rest rest)
52 (make-instance 'sql-value-exp
53 :modifier 'not :components rest))
55 (defsql sql-union (:symbol "union") (&rest rest)
56 (make-instance 'sql-set-exp
57 :operator 'union :sub-expressions rest))
59 (defsql sql-intersect (:symbol "intersect") (&rest rest)
60 (make-instance 'sql-set-exp
61 :operator 'intersect :sub-expressions rest))
63 (defsql sql-except (:symbol "except") (&rest rest)
64 (make-instance 'sql-set-exp
65 :operator 'except :sub-expressions rest))
67 (defsql sql-minus (:symbol "minus") (&rest rest)
68 (make-instance 'sql-set-exp
69 :operator 'except :sub-expressions rest))
71 (defsql sql-limit (:symbol "limit") (&rest rest)
72 (make-instance 'sql-query-modifier-exp
73 :modifier 'limit :components rest))
75 (defsql sql-group-by (:symbol "group-by") (&rest rest)
76 (make-instance 'sql-query-modifier-exp
77 :modifier '|group by| :components rest))
79 (defsql sql-order-by (:symbol "order-by") (&rest rest)
80 (make-instance 'sql-query-modifier-exp
81 :modifier '|order by| :components rest))
83 (defsql sql-having (:symbol "having") (&rest rest)
84 (make-instance 'sql-query-modifier-exp
85 :modifier 'having :components rest))
87 (defsql sql-null (:symbol "null") (&rest rest)
89 (make-instance 'sql-relational-exp :operator 'is
90 :sub-expressions (list (car rest) nil))
91 (make-instance 'sql-value-exp :components 'null)))
93 (defsql sql-not-null (:symbol "not-null") ()
94 (make-instance 'sql-value-exp
95 :components '|NOT NULL|))
97 (defsql sql-exists (:symbol "exists") (&rest rest)
98 (make-instance 'sql-function-exp
99 :name 'exists :args rest))
101 (defsql sql-* (:symbol "*") (&rest rest)
102 (if (zerop (length rest))
103 (make-instance 'sql-ident :name '*)
104 (make-instance 'sql-relational-exp :operator '* :sub-expressions rest)))
106 (defsql sql-+ (:symbol "+") (&rest rest)
108 (make-instance 'sql-relational-exp
109 :operator '+ :sub-expressions rest)
110 (make-instance 'sql-value-exp :modifier '+ :components rest)))
112 (defsql sql-/ (:symbol "/") (&rest rest)
113 (make-instance 'sql-relational-exp
114 :operator '/ :sub-expressions rest))
116 (defsql sql-- (:symbol "-") (&rest rest)
118 (make-instance 'sql-relational-exp
119 :operator '- :sub-expressions rest)
120 (make-instance 'sql-value-exp :modifier '- :components rest)))
122 (defsql sql-like (:symbol "like") (&rest rest)
123 (make-instance 'sql-relational-exp
124 :operator 'like :sub-expressions rest))
126 (defsql sql-uplike (:symbol "uplike") (&rest rest)
127 (make-instance 'sql-upcase-like
128 :sub-expressions rest))
130 (defsql sql-and (:symbol "and") (&rest rest)
131 (make-instance 'sql-relational-exp
132 :operator 'and :sub-expressions rest))
134 (defsql sql-or (:symbol "or") (&rest rest)
135 (make-instance 'sql-relational-exp
136 :operator 'or :sub-expressions rest))
138 (defsql sql-in (:symbol "in") (&rest rest)
139 (make-instance 'sql-relational-exp
140 :operator 'in :sub-expressions rest))
142 (defsql sql-concat (:symbol "concat") (&rest rest)
143 (make-instance 'sql-relational-exp
144 :operator '\|\| :sub-expressions rest))
146 (defsql sql-substr (:symbol "substr") (&rest rest)
147 (if (= (length rest) 3)
148 (make-instance 'sql-function-exp
149 :name 'substring :args rest)
150 (error 'sql-user-error :message "SUBSTR must have 3 arguments.")))
152 (defsql sql-is (:symbol "is") (&rest rest)
153 (make-instance 'sql-relational-exp
154 :operator 'is :sub-expressions rest))
156 (defsql sql-= (:symbol "=") (&rest rest)
157 (make-instance 'sql-relational-exp
158 :operator '= :sub-expressions rest))
160 (defsql sql-== (:symbol "==") (&rest rest)
161 (make-instance 'sql-assignment-exp
162 :operator '= :sub-expressions rest))
164 (defsql sql-< (:symbol "<") (&rest rest)
165 (make-instance 'sql-relational-exp
166 :operator '< :sub-expressions rest))
169 (defsql sql-> (:symbol ">") (&rest rest)
170 (make-instance 'sql-relational-exp
171 :operator '> :sub-expressions rest))
173 (defsql sql-<> (:symbol "<>") (&rest rest)
174 (make-instance 'sql-relational-exp
175 :operator '<> :sub-expressions rest))
177 (defsql sql->= (:symbol ">=") (&rest rest)
178 (make-instance 'sql-relational-exp
179 :operator '>= :sub-expressions rest))
181 (defsql sql-<= (:symbol "<=") (&rest rest)
182 (make-instance 'sql-relational-exp
183 :operator '<= :sub-expressions rest))
185 (defsql sql-count (:symbol "count") (&rest rest)
186 (make-instance 'sql-function-exp
187 :name 'count :args rest))
189 (defsql sql-max (:symbol "max") (&rest rest)
190 (make-instance 'sql-function-exp
191 :name 'max :args rest))
193 (defsql sql-min (:symbol "min") (&rest rest)
194 (make-instance 'sql-function-exp
195 :name 'min :args rest))
197 (defsql sql-avg (:symbol "avg") (&rest rest)
198 (make-instance 'sql-function-exp
199 :name 'avg :args rest))
201 (defsql sql-sum (:symbol "sum") (&rest rest)
202 (make-instance 'sql-function-exp
203 :name 'sum :args rest))
205 (defsql sql-the (:symbol "the") (&rest rest)
206 (make-instance 'sql-typecast-exp
207 :modifier (first rest) :components (second rest)))
209 (defsql sql-function (:symbol "function") (&rest args)
210 (make-instance 'sql-function-exp
211 :name (make-symbol (car args)) :args (cdr args)))
213 (defsql sql-between (:symbol "between") (&rest rest)
214 (if (= (length rest) 3)
215 (make-instance 'sql-between-exp :name 'between :args rest)
216 (error 'sql-user-error :message "BETWEEN must have 3 arguments.")))
218 (defsql sql-distinct (:symbol "distinct") (&rest rest)
219 (make-instance 'sql-query-modifier-exp :modifier 'distinct
222 (defsql sql-coalesce (:symbol "coalesce") (&rest rest)
223 (make-instance 'sql-function-exp
224 :name 'coalesce :args rest))
226 (defsql sql-nvl (:symbol "nvl") (&rest rest)
227 (make-instance 'sql-function-exp
228 :name 'coalesce :args rest))