(list :flatp t))
(list :database database))))
-(defun truncate-database (&key (database *default-database*))
- (unless (typep database 'database)
- (signal-no-database-error database))
- (unless (is-database-open database)
- (database-reconnect database))
- (when (eq :oracle (database-type database))
- (ignore-errors (execute-command "PURGE RECYCLEBIN" :database database)))
- (when (db-type-has-views? (database-underlying-type database))
- (dolist (view (list-views :database database))
- (drop-view view :database database)))
- (dolist (table (list-tables :database database))
- (drop-table table :database database))
- (dolist (index (list-indexes :database database))
- (drop-index index :database database))
- (dolist (seq (list-sequences :database database))
- (drop-sequence seq :database database))
- (when (eq :oracle (database-type database))
- (ignore-errors (execute-command "PURGE RECYCLEBIN" :database database))))
(defun print-query (query-exp &key titles (formats t) (sizes t) (stream t)
(database *default-database*))
DATABASE which defaults to *DEFAULT-DATABASE*. There are three
ways of specifying the values to update for each row. In the
first, VALUES contains a list of values to use in the update and
-ATTRIBUTES, AV-PAIRS and QUERY are nil. This can be used when
-values are supplied for all attributes in TABLE. In the second,
-ATTRIBUTES is a list of column names, VALUES is a corresponding
-list of values and AV-PAIRS and QUERY are nil. In the third,
-ATTRIBUTES, VALUES and QUERY are nil and AV-PAIRS is an alist
-of (attribute value) pairs."
+ATTRIBUTES and AV-PAIRS are nil. This can be used when values are
+supplied for all attributes in TABLE. In the second, ATTRIBUTES
+is a list of column names, VALUES is a corresponding list of
+values and AV-PAIRS is nil. In the third, ATTRIBUTES and VALUES
+are nil and AV-PAIRS is an alist of (attribute value) pairs."
(when av-pairs
(setf attributes (mapcar #'car av-pairs)
values (mapcar #'cadr av-pairs)))
(execute-command stmt :database database)))
-;; iteration
-
;; output-sql
(defmethod database-output-sql ((str string) database)
(type (simple-array * (*)) str))
(let ((len (length str)))
(declare (type fixnum len))
- (cond ((= len 0)
+ (cond ((zerop len)
+empty-string+)
((and (null (position #\' str))
(null (position #\\ str)))
(do* ((i 0 (incf i))
(j 1 (incf j)))
((= i len) (subseq buf 0 (1+ j)))
- (declare (type integer i j))
+ (declare (type fixnum i j))
(let ((char (aref str i)))
- (cond ((eql char #\')
- (setf (aref buf j) #\\)
+ (declare (character char))
+ (cond ((char= char #\')
+ (setf (aref buf j) #\')
(incf j)
(setf (aref buf j) #\'))
- ((eql char #\\)
+ ((char= char #\\)
(setf (aref buf j) #\\)
(incf j)
(setf (aref buf j) #\\))
(write-char #\) *sql-stream*)))
t)
-(defmethod describe-table ((table sql-create-table)
- &key (database *default-database*))
- (database-describe-table
- database
- (convert-to-db-default-case
- (symbol-name (slot-value table 'name)) database)))
-
#+nil
(defmethod add-storage-class ((self database) (class symbol) &key (sequence t))
(let ((tablename (view-table (find-class class))))
(when sequence
(create-sequence-from-class class)))))
-;;; Iteration
+;;; Iteration
(defmacro do-query (((&rest args) query-expression
&key (database '*default-database*) (result-types :auto))
(database-query-result-set query-expression database :full-set nil
:result-types result-types)
(let ((flatp (and (= columns 1)
- (typecase query-expression
- (string t)
- (sql-query
- (slot-value query-expression 'flatp))))))
+ (typep query-expression 'sql-query)
+ (slot-value query-expression 'flatp))))
(when result-set
(unwind-protect
(do ((row (make-list columns)))
(database-query-result-set query-expression database :full-set nil
:result-types result-types)
(let ((flatp (and (= columns 1)
- (typecase query-expression
- (string t)
- (sql-query
- (slot-value query-expression 'flatp))))))
+ (typep query-expression 'sql-query)
+ (slot-value query-expression 'flatp))))
(when result-set
(unwind-protect
(let ((result (list nil)))
(database-query-result-set query-expression database :full-set t
:result-types result-types)
(let ((flatp (and (= columns 1)
- (typecase query-expression
- (string t)
- (sql-query
- (slot-value query-expression 'flatp))))))
+ (typep query-expression 'sql-query)
+ (slot-value query-expression 'flatp))))
(when result-set
(unwind-protect
(if rows
;;; Row processing macro from CLSQL
-(defmacro for-each-row (((&rest fields) &key from order-by where distinct limit) &body body)
+(defmacro for-each-row (((&rest fields) &key from order-by where distinct limit)
+ &body body)
(let ((d (gensym "DISTINCT-"))
(bind-fields (loop for f in fields collect (car f)))
(w (gensym "WHERE-"))
(database-delete-large-object object-id database))
+;;; Prepared statements
+
+(defun prepare-sql (sql-stmt types &key (database *default-database*) (result-types :auto) field-names)
+ "Prepares a SQL statement for execution. TYPES contains a
+list of types corresponding to the input parameters. Returns a
+prepared-statement object.
+
+A type can be
+ :int
+ :double
+ :null
+ (:string n)
+"
+ (unless (db-type-has-prepared-stmt? (database-type database))
+ (error 'sql-user-error
+ :message
+ (format nil
+ "Database backend type ~:@(~A~) does not support prepared statements."
+ (database-type database))))
+
+ (database-prepare sql-stmt types database result-types field-names))
+
+(defun bind-parameter (prepared-stmt position value)
+ "Sets the value of a parameter is in prepared statement."
+ (database-bind-parameter prepared-stmt position value)
+ value)
+
+(defun run-prepared-sql (prepared-stmt)
+ "Execute the prepared sql statment. All input parameters must be bound."
+ (database-run-prepared prepared-stmt))
+
+(defun free-prepared-sql (prepared-stmt)
+ "Delete the objects associated with a prepared statement."
+ (database-free-prepared prepared-stmt))