web-dev-qa-db-fra.com

MySQL: Log the Query exécuté sur certaines table

J'écris un déclencheur qui suppose de tirer sur des insertions pour une table et de loger la requête exacte utilisée pour insérer.

Cependant, en utilisant ci-dessous

SELECT info INTO original_query FROM INFORMATION_SCHEMA.PROCESSLIST WHERE id=CONNECTION_ID();

Retour à la variable d'origine_Quisery Cette requête ci-dessus n'est pas celle qui ne tire la gâchette et le comptage dans le traitement est de 1.

Je suis dans MySQL 5.6.18.

C'est toute la déclinition de la gâchette

DROP TRIGGER IF EXISTS affiliate_revenue_i_log$$
CREATE TRIGGER affiliate_revenue_i_log BEFORE INSERT ON cds_affiliate_revenues
    FOR EACH ROW
    BEGIN
      DECLARE original_query VARCHAR(1024);        
      SELECT info INTO original_query FROM INFORMATION_SCHEMA.PROCESSLIST WHERE id=CONNECTION_ID();
      INSERT INTO cds_affiliate_revenues_log (action,id,added_date,original_query) VALUES('insert',NEW.id,NOW(),original_query);
    END$$
mysqltriggerprocess
2
Cristian Rusu

Vous pouvez utiliser log_output et general_log (Utilisez prudent) , pour ceux bénis avec mySQL> = 5.1.12 :

Étapes:

J'ai créé une nouvelle table appelée new_table:

CREATE TABLE new_table (
  id int(11) NOT NULL,
  text varchar(45) DEFAULT NULL,
  text2 varchar(45) DEFAULT NULL,
  PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

J'ai créé une nouvelle table de journaux appelée new_table_log:

CREATE TABLE test.new_table_log LIKE new_table;

ALTER TABLE test.new_table_log 
CHANGE COLUMN text2 text2 VARCHAR(1024) NULL DEFAULT NULL COMMENT '' ;

Gâchette:

USE `test`;
DELIMITER $$
DROP TRIGGER IF EXISTS test.new_table_AFTER_INSERT$$
USE `test`$$
CREATE DEFINER=`root`@`localhost` TRIGGER `test`.`new_table_AFTER_INSERT` AFTER INSERT ON `new_table` FOR EACH ROW
BEGIN
    DECLARE vOriginal_query VARCHAR(1024); 
    DECLARE vLAST_LO VARCHAR(15) DEFAULT 'NONE';
    DECLARE vLAST_GL ENUM('ON','OFF') DEFAULT 'OFF';
    SET vLAST_LO=@@log_output;
    SET vLAST_GL=IF(@@general_log=0,'OFF','ON');
    SET GLOBAL log_output = 'TABLE';
    SET GLOBAL general_log = 'ON';
    SELECT argument INTO vOriginal_query FROM mysql.general_log WHERE argument LIKE 'INSERT%' AND argument NOT LIKE '%NEW.%' AND thread_id=CONNECTION_ID() ORDER BY event_time DESC LIMIT 0,1;
    INSERT INTO new_table_log(id,text,text2)VALUES(NEW.id,'INSERT',vOriginal_query);
    SET GLOBAL log_output = vLAST_LO;
    SET GLOBAL general_log = vLAST_GL;
END$$
DELIMITER ;

Insérer dans new_table:

INSERT INTO test.new_table(id,text,text2)VALUES(1,'Lel','TEST');

Test:

mysql> SELECT @@log_output;
+--------------+
| @@log_output |
+--------------+
| FILE         |
+--------------+
1 row in set (0.00 sec)

mysql> SELECT @@general_log;
+---------------+
| @@general_log |
+---------------+
|             0 |
+---------------+
1 row in set (0.00 sec)

mysql> CREATE TABLE new_table (
    ->   id int(11) NOT NULL,
    ->   text varchar(45) DEFAULT NULL,
    ->   text2 varchar(45) DEFAULT NULL,
    ->   PRIMARY KEY (id)
    -> ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
Query OK, 0 rows affected (0.01 sec)

mysql> CREATE TABLE test.new_table_log LIKE new_table;
Query OK, 0 rows affected (0.01 sec)

mysql> ALTER TABLE test.new_table_log 
    -> CHANGE COLUMN text2 text2 VARCHAR(1024) NULL DEFAULT NULL COMMENT '' ;
Query OK, 0 rows affected (0.01 sec)
Records: 0  Duplicates: 0  Warnings: 0

mysql> INSERT INTO test.new_table(id,text,text2)VALUES(1,'Lel','TEST');
Query OK, 1 row affected (0.02 sec)

mysql> SELECT * FROM test.new_table;
+----+------+-------+
| id | text | text2 |
+----+------+-------+
|  1 | Lel  | TEST  |
+----+------+-------+
1 row in set (0.00 sec)

mysql> SELECT * FROM test.new_table_log;
+----+--------+-----------------------------------------------------------------+
| id | text   | text2                                                           |
+----+--------+-----------------------------------------------------------------+
|  1 | INSERT | INSERT INTO test.new_table(id,text,text2)VALUES(1,'Lel','TEST') |
+----+--------+-----------------------------------------------------------------+
1 row in set (0.00 sec)

mysql> SELECT @@log_output;
+--------------+
| @@log_output |
+--------------+
| FILE         |
+--------------+
1 row in set (0.00 sec)

mysql> SELECT @@general_log;
+---------------+
| @@general_log |
+---------------+
|             0 |
+---------------+
1 row in set (0.00 sec)

mysql>
1
oNare