J'ai essayé de montrer le code SQL d'une procédure stockée appelée add_pixel
:
mysql> SHOW PROCEDURE CODE add_pixel;
ERROR 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1
Je me suis assuré que la procédure existe:
mysql> CALL add_pixel();
ERROR 1318 (42000): Incorrect number of arguments for PROCEDURE pixels.add_pixel; expected 3, got 0
Et SHOW CREATE PROCEDURE
travaux:
mysql> SHOW CREATE PROCEDURE add_pixel;
+-----------+----------+------------------+----------------------+----------------------+--------------------+
| Procedure | sql_mode | Create Procedure | character_set_client | collation_connection | Database Collation |
+-----------+----------+------------------+----------------------+----------------------+--------------------+
| add_pixel | | NULL | utf8 | utf8_general_ci | utf8_unicode_ci |
+-----------+----------+------------------+----------------------+----------------------+--------------------+
1 row in set (0.00 sec)
et que ma version MySQL prend en charge la procédure de spectacle ( Afficher le code de procédure a été ajoutée dans MySQL 5.0.17 ).
Comment puis-je voir le code SQL source de la procédure?
ÉDITER
Incroyablement assez, INFORMATION_SCHEMA.ROUTINES
n'a pas de colonne param-list.
Vous pouvez utiliser mysql.proc
. Par exemple, en regardant une procédure de mine:
SELECT * FROM mysql.proc WHERE name='run' \G
*************************** 1. row ***************************
db: common_schema
name: run
type: PROCEDURE
specific_name: run
language: SQL
sql_data_access: MODIFIES_SQL_DATA
is_deterministic: YES
security_type: INVOKER
param_list:
in query_script text
returns:
body: main_body: begin
if (LEFT(query_script, 1) in ('/', '\\')) and (LEFT(query_script, 2) != '/*') then
begin
declare query_script_file_name text;
set query_script_file_name := query_script;
set query_script := LOAD_FILE(query_script_file_name);
if query_script is null then
call throw(CONCAT('Cannot load script file: ', query_script_file_name));
end if;
end;
end if;
call _interpret(query_script, TRUE);
end
definer: root@localhost
created: 2012-08-17 17:24:46
modified: 2012-08-17 17:24:46
sql_mode:
comment: Run given QueryScript text
character_set_client: utf8
collation_connection: utf8_general_ci
db_collation: latin1_swedish_ci
body_utf8: main_body: begin
if (LEFT(query_script, 1) in ('/', '\')) and (LEFT(query_script, 2) != '/*') then
begin
declare query_script_file_name text;
set query_script_file_name := query_script;
set query_script := LOAD_FILE(query_script_file_name);
if query_script is null then
call throw(CONCAT('Cannot load script file: ', query_script_file_name));
end if;
end;
end if;
call _interpret(query_script, TRUE);
end
Cherchez le param_list
colonne (je crois que c'était votre principale préoccupation). Cherchez également db
, name
, type
.
==================
Alternativement, peut utiliser INFORMATION_SCHEMA.ROUTINES
. Par exemple, en regardant une procédure de mine:
SELECT * FROM INFORMATION_SCHEMA.ROUTINES WHERE ROUTINE_NAME='run' \G
*************************** 1. row ***************************
SPECIFIC_NAME: run
ROUTINE_CATALOG: NULL
ROUTINE_SCHEMA: common_schema
ROUTINE_NAME: run
ROUTINE_TYPE: PROCEDURE
DTD_IDENTIFIER: NULL
ROUTINE_BODY: SQL
ROUTINE_DEFINITION: main_body: begin
if (LEFT(query_script, 1) in ('/', '\')) then
begin
declare query_script_file_name text;
set query_script_file_name := query_script;
set query_script := LOAD_FILE(query_script_file_name);
if query_script is null then
call throw(CONCAT('Cannot load script file: ', query_script_file_name));
end if;
end;
end if;
call _interpret(query_script, TRUE);
end
EXTERNAL_NAME: NULL
EXTERNAL_LANGUAGE: NULL
PARAMETER_STYLE: SQL
IS_DETERMINISTIC: YES
SQL_DATA_ACCESS: MODIFIES SQL DATA
SQL_PATH: NULL
SECURITY_TYPE: INVOKER
CREATED: 2012-08-17 17:24:46
LAST_ALTERED: 2012-08-17 17:24:46
SQL_MODE:
ROUTINE_COMMENT: Run given QueryScript text
DEFINER: root@localhost
CHARACTER_SET_CLIENT: utf8
COLLATION_CONNECTION: utf8_general_ci
DATABASE_COLLATION: latin1_swedish_ci
En particulier, regardez les colonnes ROUTINE_SCHEMA
, ROUTINE_NAME
, ROUTINE_TYPE
, ROUTINE_DEFINITION
. Ceux-ci fournissent la plupart des données intéressantes.