#
# WL#2111: GET DIAGNOSTICS tests
#
#
# Test reserved keywords: GET
#
DROP TABLE IF EXISTS t1;
DROP PROCEDURE IF EXISTS p1;
CREATE TABLE t1 (get INT);
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'get INT)' at line 1
CREATE PROCEDURE p1()
BEGIN
DECLARE get INT DEFAULT 1;
END|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'get INT DEFAULT 1;
END' at line 3
# Quoting
CREATE TABLE t1 (`get` INT);
INSERT INTO t1 (`get`) values (1);
SELECT `get` FROM t1 WHERE `get` = 1;
get
1
DROP TABLE t1;
CREATE PROCEDURE p1()
BEGIN
DECLARE `get` INT DEFAULT 1;
SELECT `get`;
END|
CALL p1();
`get`
1
DROP PROCEDURE p1;
#
# Test non-reserved keywords: CURRENT, DIAGNOSTICS, NUMBER, RETURNED_SQLSTATE
#
DROP TABLE IF EXISTS t1;
DROP PROCEDURE IF EXISTS p1;
CREATE TABLE t1 (current INT, diagnostics INT, number INT, returned_sqlstate INT);
INSERT INTO t1 (current, diagnostics, number, returned_sqlstate) values (1,2,3,4);
SELECT current, diagnostics, number, returned_sqlstate FROM t1 WHERE number = 3;
current	diagnostics	number	returned_sqlstate
1	2	3	4
SELECT `current`, `number` FROM t1 WHERE `current` = 1 AND `number` = 3;
current	number
1	3
DROP TABLE t1;
CREATE PROCEDURE p1()
BEGIN
DECLARE current INT DEFAULT 1;
DECLARE diagnostics INT DEFAULT 2;
DECLARE number INT DEFAULT 3;
DECLARE returned_sqlstate INT DEFAULT 4;
SELECT current, diagnostics, number, returned_sqlstate;
END|
CALL p1();
current	diagnostics	number	returned_sqlstate
1	2	3	4
DROP PROCEDURE p1;
#
# Test GET DIAGNOSTICS syntax
#
DROP PROCEDURE IF EXISTS p1;
GET;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET CURRENT;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET CURRENT DIAGNOSTICS;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1

# Statement information syntax

GET DIAGNOSTICS @var;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS var;
ERROR 42000: Undeclared variable: var
CREATE PROCEDURE p1()
BEGIN
GET DIAGNOSTICS var;
END|
ERROR 42000: Undeclared variable: var
CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS var;
END|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ';
END' at line 4
GET DIAGNOSTICS @var =;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS @var = INVALID;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID' at line 1
GET DIAGNOSTICS @var = MORE;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'MORE' at line 1
GET DIAGNOSTICS @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'CLASS_ORIGIN' at line 1
GET DIAGNOSTICS @var = INVALID,;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID,' at line 1
GET DIAGNOSTICS @var1 = NUMBER, @var2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS @var1 = NUMBER, @var2 = INVALID;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID' at line 1
GET DIAGNOSTICS @@var1 = NUMBER;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '@var1 = NUMBER' at line 1
GET DIAGNOSTICS @var1 = NUMBER, @@var2 = NUMBER;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '@var2 = NUMBER' at line 1
CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS var = INVALID;
END|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID;
END' at line 4
CREATE PROCEDURE p1()
BEGIN
DECLARE var CONDITION FOR SQLSTATE '12345';
GET DIAGNOSTICS var = NUMBER;
END|
ERROR 42000: Undeclared variable: var
CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS var = NUMBER, var1 = ROW_COUNT;
END|
ERROR 42000: Undeclared variable: var1
GET DIAGNOSTICS @var = NUMBER;
GET DIAGNOSTICS @var = ROW_COUNT;
GET DIAGNOSTICS @var1 = NUMBER, @var2 = ROW_COUNT;
GET DIAGNOSTICS @var1 = ROW_COUNT, @var2 = NUMBER;
CREATE PROCEDURE p1()
BEGIN
DECLARE var  INT;
DECLARE var1 INT;
DECLARE var2 INT;
GET DIAGNOSTICS var = NUMBER;
GET DIAGNOSTICS var = ROW_COUNT;
GET DIAGNOSTICS var1 = NUMBER, var2 = ROW_COUNT;
GET DIAGNOSTICS var1 = ROW_COUNT, var2 = NUMBER;
END|
DROP PROCEDURE p1;

# Condition information syntax

GET DIAGNOSTICS CONDITION;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS CONDITION a;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS CONDITION 1;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS CONDITION 1 @var;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS CONDITION 1 var;
ERROR 42000: Undeclared variable: var
CREATE PROCEDURE p1()
BEGIN
GET DIAGNOSTICS CONDITION 1 var;
END|
ERROR 42000: Undeclared variable: var
CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS CONDITION 1 var;
END|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near ';
END' at line 4
GET DIAGNOSTICS CONDITION 1 @var =;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS CONDITION 1 @var = INVALID;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID' at line 1
GET DIAGNOSTICS CONDITION 1 @var = NUMBER;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'NUMBER' at line 1
GET DIAGNOSTICS CONDITION 1 @var = INVALID,;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID,' at line 1
GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @var2;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @var2 = INVALID;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID' at line 1
GET DIAGNOSTICS CONDITION 1 @@var1 = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '@var1 = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @@var2 = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '@var2 = CLASS_ORIGIN' at line 1
CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS CONDITION 1 var = INVALID;
END|
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'INVALID;
END' at line 4
CREATE PROCEDURE p1()
BEGIN
DECLARE var CONDITION FOR SQLSTATE '12345';
GET DIAGNOSTICS CONDITION 1 var = NUMBER;
END|
ERROR 42000: Undeclared variable: var
CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS CONDITION 1 var = CLASS_ORIGIN, var1 = SUBCLASS_ORIGIN;
END|
ERROR 42000: Undeclared variable: var1
GET DIAGNOSTICS CONDITION 1 @var = CLASS_ORIGIN;
GET DIAGNOSTICS CONDITION 1 @var = SUBCLASS_ORIGIN;
GET DIAGNOSTICS CONDITION 1 @var1 = CLASS_ORIGIN, @var2 = SUBCLASS_ORIGIN;
GET DIAGNOSTICS CONDITION 1 @var1 = SUBCLASS_ORIGIN, @var2 = CLASS_ORIGIN;
CREATE PROCEDURE p1()
BEGIN
DECLARE var  INT;
DECLARE var1 INT;
DECLARE var2 INT;
GET DIAGNOSTICS CONDITION 1 var = CLASS_ORIGIN;
GET DIAGNOSTICS CONDITION 1 var = SUBCLASS_ORIGIN;
GET DIAGNOSTICS CONDITION 1 var1 = CLASS_ORIGIN, var2 = SUBCLASS_ORIGIN;
GET DIAGNOSTICS CONDITION 1 var1 = SUBCLASS_ORIGIN, var2 = CLASS_ORIGIN;
END|
DROP PROCEDURE p1;
# Condition number expression
GET DIAGNOSTICS CONDITION -1 @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '-1 @var = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION 1+1 @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '+1 @var = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION ? @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '? @var = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION (1) @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(1) @var = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION p1() @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '() @var = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION ABS(2) @var = CLASS_ORIGIN;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '(2) @var = CLASS_ORIGIN' at line 1
GET DIAGNOSTICS CONDITION 1.1 @var = CLASS_ORIGIN;
GET DIAGNOSTICS CONDITION "1" @var = CLASS_ORIGIN;
SELECT COUNT(max_questions) INTO @var FROM mysql.user;
GET DIAGNOSTICS CONDITION 9999 @var = CLASS_ORIGIN;
Warnings:
Error	1758	Invalid condition number
GET DIAGNOSTICS CONDITION NULL @var = CLASS_ORIGIN;
Warnings:
Error	1758	Invalid condition number
Error	1758	Invalid condition number
GET DIAGNOSTICS CONDITION a @var = CLASS_ORIGIN;
Warnings:
Error	1758	Invalid condition number
Error	1758	Invalid condition number
Error	1054	Unknown column 'a' in 'field list'
SELECT COUNT(max_questions) INTO @var FROM mysql.user;
SET @cond = 1;
GET DIAGNOSTICS CONDITION @cond @var1 = CLASS_ORIGIN;
Warnings:
Error	1758	Invalid condition number
SET @cond = "invalid";
GET DIAGNOSTICS CONDITION @cond @var1 = CLASS_ORIGIN;
Warnings:
Error	1758	Invalid condition number
Error	1758	Invalid condition number
SELECT COUNT(max_questions) INTO @var FROM mysql.user;
CREATE PROCEDURE p1()
BEGIN
DECLARE cond INT DEFAULT 1;
DECLARE var INT;
GET DIAGNOSTICS CONDITION cond var = CLASS_ORIGIN;
END|
DROP PROCEDURE p1;
CREATE PROCEDURE p1()
BEGIN
DECLARE cond TEXT;
DECLARE var INT;
GET DIAGNOSTICS CONDITION cond var = CLASS_ORIGIN;
END|
CALL p1();
DROP PROCEDURE p1;
#
# Test GET DIAGNOSTICS runtime
#

# GET DIAGNOSTICS cannot be the object of a PREPARE statement.

PREPARE stmt FROM "GET DIAGNOSTICS CONDITION 1 @var = CLASS_ORIGIN";
ERROR HY000: This command is not supported in the prepared statement protocol yet
PREPARE stmt FROM "GET DIAGNOSTICS @var = NUMBER";
ERROR HY000: This command is not supported in the prepared statement protocol yet

# GET DIAGNOSTICS does not clear the diagnostics area.

SELECT CAST(-19999999999999999999 AS SIGNED);
CAST(-19999999999999999999 AS SIGNED)
-9223372036854775808
Warnings:
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
GET DIAGNOSTICS @var = NUMBER;
SHOW WARNINGS;
Level	Code	Message
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
#
# If GET DIAGNOSTICS itself causes an error, an error message is appended.
#
SELECT CAST(-19999999999999999999 AS SIGNED);
CAST(-19999999999999999999 AS SIGNED)
-9223372036854775808
Warnings:
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
GET DIAGNOSTICS CONDITION 99999 @var = CLASS_ORIGIN;
Warnings:
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
Error	1758	Invalid condition number
SHOW WARNINGS;
Level	Code	Message
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
Error	1758	Invalid condition number

# Statement information runtime

SELECT CAST(-19999999999999999999 AS SIGNED),
CAST(-19999999999999999999 AS SIGNED);
CAST(-19999999999999999999 AS SIGNED)	CAST(-19999999999999999999 AS SIGNED)
-9223372036854775808	-9223372036854775808
Warnings:
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
GET DIAGNOSTICS @var = NUMBER;
SELECT @var;
@var
2
SELECT COUNT(max_questions) INTO @var FROM mysql.user;
GET DIAGNOSTICS @var = NUMBER;
SELECT @var;
@var
0
SELECT 1;
1
1
GET DIAGNOSTICS @var = ROW_COUNT;
SELECT @var;
@var
-1
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2),(3);
GET DIAGNOSTICS @var = ROW_COUNT;
SELECT @var;
@var
3
DROP TABLE t1;
CREATE PROCEDURE p1()
BEGIN
DECLARE number INT;
DECLARE row_count INT;
SELECT CAST(-19999999999999999999 AS SIGNED),
CAST(-19999999999999999999 AS SIGNED);
GET DIAGNOSTICS number = NUMBER;
CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1),(2),(3);
GET DIAGNOSTICS row_count = ROW_COUNT;
DROP TABLE t1;
SELECT number, row_count;
END|
CALL p1();
CAST(-19999999999999999999 AS SIGNED)	CAST(-19999999999999999999 AS SIGNED)
-9223372036854775808	-9223372036854775808
number	row_count
2	3
DROP PROCEDURE p1;

# Condition information runtime

SELECT CAST(-19999999999999999999 AS SIGNED);
CAST(-19999999999999999999 AS SIGNED)
-9223372036854775808
Warnings:
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
GET DIAGNOSTICS CONDITION 1
@class_origin = CLASS_ORIGIN,
@subclass_origin = SUBCLASS_ORIGIN,
@constraint_catalog = CONSTRAINT_CATALOG,
@constraint_schema = CONSTRAINT_SCHEMA,
@constraint_name = CONSTRAINT_NAME,
@catalog_name = CATALOG_NAME,
@schema_name = SCHEMA_NAME,
@table_name = TABLE_NAME,
@column_name = COLUMN_NAME,
@cursor_name = CURSOR_NAME,
@message_text = MESSAGE_TEXT,
@mysql_errno = MYSQL_ERRNO,
@returned_sqlstate = RETURNED_SQLSTATE;
SELECT
@class_origin,
@subclass_origin,
@constraint_catalog,
@constraint_schema,
@constraint_name,
@catalog_name,
@schema_name,
@table_name,
@column_name,
@cursor_name,
@message_text,
@mysql_errno,
@returned_sqlstate;
@class_origin	
@subclass_origin	
@constraint_catalog	
@constraint_schema	
@constraint_name	
@catalog_name	
@schema_name	
@table_name	
@column_name	
@cursor_name	
@message_text	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
@mysql_errno	1916
@returned_sqlstate	22003
CREATE PROCEDURE p1()
BEGIN
DECLARE class_origin TEXT DEFAULT "a";
DECLARE subclass_origin TEXT DEFAULT "a";
DECLARE constraint_catalog TEXT DEFAULT "a";
DECLARE constraint_schema TEXT DEFAULT "a";
DECLARE constraint_name TEXT DEFAULT "a";
DECLARE catalog_name TEXT DEFAULT "a";
DECLARE schema_name TEXT DEFAULT "a";
DECLARE table_name TEXT DEFAULT "a";
DECLARE column_name TEXT DEFAULT "a";
DECLARE cursor_name TEXT DEFAULT "a";
DECLARE message_text TEXT DEFAULT "a";
DECLARE mysql_errno INT DEFAULT 1;
DECLARE returned_sqlstate TEXT DEFAULT "a";
SELECT CAST(-19999999999999999999 AS SIGNED);
GET DIAGNOSTICS CONDITION 1
class_origin = CLASS_ORIGIN,
subclass_origin = SUBCLASS_ORIGIN,
constraint_catalog = CONSTRAINT_CATALOG,
constraint_schema = CONSTRAINT_SCHEMA,
constraint_name = CONSTRAINT_NAME,
catalog_name = CATALOG_NAME,
schema_name = SCHEMA_NAME,
table_name = TABLE_NAME,
column_name = COLUMN_NAME,
cursor_name = CURSOR_NAME,
message_text = MESSAGE_TEXT,
mysql_errno = MYSQL_ERRNO,
returned_sqlstate = RETURNED_SQLSTATE;
SELECT
class_origin,
subclass_origin,
constraint_catalog,
constraint_schema,
constraint_name,
catalog_name,
schema_name,
table_name,
column_name,
cursor_name,
message_text,
mysql_errno,
returned_sqlstate;
END|
CALL p1();
CAST(-19999999999999999999 AS SIGNED)	-9223372036854775808
class_origin	
subclass_origin	
constraint_catalog	
constraint_schema	
constraint_name	
catalog_name	
schema_name	
table_name	
column_name	
cursor_name	
message_text	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
mysql_errno	1916
returned_sqlstate	22003
Warnings:
Level	Warning
Code	1916
Message	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
DROP PROCEDURE p1;
CREATE PROCEDURE p1()
BEGIN
DECLARE errno1 INT;
DECLARE errno2 INT;
DECLARE msg1 TEXT;
DECLARE msg2 TEXT;
SELECT CAST(-19999999999999999999 AS SIGNED);
GET DIAGNOSTICS CONDITION 99999 msg1 = MESSAGE_TEXT;
GET DIAGNOSTICS CONDITION 1 errno1 = MYSQL_ERRNO, msg1 = MESSAGE_TEXT;
GET DIAGNOSTICS CONDITION 2 errno2 = MYSQL_ERRNO, msg2 = MESSAGE_TEXT;
SELECT errno1, msg1, errno2, msg2;
END|
CALL p1();
CAST(-19999999999999999999 AS SIGNED)	-9223372036854775808
errno1	1916
msg1	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
errno2	1758
msg2	Invalid condition number
Warnings:
Level	Warning
Code	1916
Message	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
Level	Error
Code	1758
Message	Invalid condition number
DROP PROCEDURE p1;

# Interaction with SIGNAL

CREATE PROCEDURE p1()
BEGIN
DECLARE errno INT DEFAULT 0;
DECLARE msg TEXT DEFAULT "foo";
DECLARE cond CONDITION FOR SQLSTATE "01234";
DECLARE CONTINUE HANDLER for 1012
BEGIN
GET DIAGNOSTICS CONDITION 1 errno = MYSQL_ERRNO, msg = MESSAGE_TEXT;
END;
SIGNAL cond SET MESSAGE_TEXT = "Signal message", MYSQL_ERRNO = 1012;
SELECT errno, msg;
END|
CALL p1();
errno	1012
msg	Signal message
DROP PROCEDURE p1;
CREATE PROCEDURE p1()
BEGIN
SIGNAL SQLSTATE '77777' SET MYSQL_ERRNO = 1000, MESSAGE_TEXT='ÁÂÃÅÄ';
END|
CALL p1();
ERROR 77777: ÁÂÃÅÄ
GET DIAGNOSTICS CONDITION 1
@mysql_errno = MYSQL_ERRNO, @message_text = MESSAGE_TEXT,
@returned_sqlstate = RETURNED_SQLSTATE, @class_origin = CLASS_ORIGIN;
SELECT @mysql_errno, @message_text, @returned_sqlstate, @class_origin;
@mysql_errno	1000
@message_text	ÁÂÃÅÄ
@returned_sqlstate	77777
@class_origin	
DROP PROCEDURE p1;
CREATE PROCEDURE p1()
BEGIN
DECLARE cond CONDITION FOR SQLSTATE '12345';
SIGNAL cond SET
CLASS_ORIGIN = 'CLASS_ORIGIN text',
SUBCLASS_ORIGIN = 'SUBCLASS_ORIGIN text',
CONSTRAINT_CATALOG = 'CONSTRAINT_CATALOG text',
CONSTRAINT_SCHEMA = 'CONSTRAINT_SCHEMA text',
CONSTRAINT_NAME = 'CONSTRAINT_NAME text',
CATALOG_NAME = 'CATALOG_NAME text',
SCHEMA_NAME = 'SCHEMA_NAME text',
TABLE_NAME = 'TABLE_NAME text',
COLUMN_NAME = 'COLUMN_NAME text',
CURSOR_NAME = 'CURSOR_NAME text',
MESSAGE_TEXT = 'MESSAGE_TEXT text',
MYSQL_ERRNO = 54321;
END|
CALL p1();
ERROR 12345: MESSAGE_TEXT text
GET DIAGNOSTICS CONDITION 1
@class_origin = CLASS_ORIGIN,
@subclass_origin = SUBCLASS_ORIGIN,
@constraint_catalog = CONSTRAINT_CATALOG,
@constraint_schema = CONSTRAINT_SCHEMA,
@constraint_name = CONSTRAINT_NAME,
@catalog_name = CATALOG_NAME,
@schema_name = SCHEMA_NAME,
@table_name = TABLE_NAME,
@column_name = COLUMN_NAME,
@cursor_name = CURSOR_NAME,
@message_text = MESSAGE_TEXT,
@mysql_errno = MYSQL_ERRNO,
@returned_sqlstate = RETURNED_SQLSTATE;
SELECT
@class_origin,
@subclass_origin,
@constraint_catalog,
@constraint_schema,
@constraint_name,
@catalog_name,
@schema_name,
@table_name,
@column_name,
@cursor_name,
@message_text,
@mysql_errno,
@returned_sqlstate;
@class_origin	CLASS_ORIGIN text
@subclass_origin	SUBCLASS_ORIGIN text
@constraint_catalog	CONSTRAINT_CATALOG text
@constraint_schema	CONSTRAINT_SCHEMA text
@constraint_name	CONSTRAINT_NAME text
@catalog_name	CATALOG_NAME text
@schema_name	SCHEMA_NAME text
@table_name	TABLE_NAME text
@column_name	COLUMN_NAME text
@cursor_name	CURSOR_NAME text
@message_text	MESSAGE_TEXT text
@mysql_errno	54321
@returned_sqlstate	12345
DROP PROCEDURE p1;
#
# Demonstration
#

# The same statement information item can be used multiple times.

CREATE PROCEDURE p1()
BEGIN
DECLARE var INT;
GET DIAGNOSTICS var = NUMBER, @var = NUMBER;
SELECT var, @var;
END|
CALL p1();
var	@var
1	1
DROP PROCEDURE p1;

# Setting TABLE_NAME is currently not implemented.

CREATE PROCEDURE p1()
BEGIN
DECLARE v VARCHAR(64);
DECLARE CONTINUE HANDLER FOR SQLEXCEPTION
GET DIAGNOSTICS CONDITION 1 v = TABLE_NAME;
DROP TABLE no_such_table;
SELECT v;
END|
CALL p1();
v

DROP PROCEDURE p1;

# Message is truncated to fit into target. No truncation warning.

CREATE PROCEDURE p1()
BEGIN
DECLARE v CHAR(1);
CREATE TABLE IF NOT EXISTS t1 (a INT);
GET DIAGNOSTICS CONDITION 1 v = MESSAGE_TEXT;
SELECT v;
END|
CREATE TABLE t1 (a INT);
CALL p1();
v
T
Warnings:
Note	1050	Table 't1' already exists
DROP TABLE t1;
DROP PROCEDURE p1;

# Returns number of rows updated by the UPDATE statements.

CREATE PROCEDURE p1(IN param INT)
LANGUAGE SQL
BEGIN
DECLARE v INT DEFAULT 0;
DECLARE rcount_each INT;
DECLARE rcount_total INT DEFAULT 0;
WHILE v < 5 DO
UPDATE t1 SET a = a * 1.1  WHERE b = param;
GET DIAGNOSTICS rcount_each = ROW_COUNT;
SET rcount_total = rcount_total + rcount_each;
SET v = v + 1;
END WHILE;
SELECT rcount_total;
END|
CREATE TABLE t1 (a REAL, b INT);
INSERT INTO t1 VALUES (1.1, 1);
CALL p1(1);
rcount_total
5
DROP TABLE t1;
DROP PROCEDURE p1;

# GET DIAGNOSTICS doesn't clear the diagnostics area.

CREATE PROCEDURE p1()
BEGIN
DECLARE CONTINUE HANDLER FOR SQLWARNING
BEGIN
GET CURRENT DIAGNOSTICS CONDITION 1 @x = RETURNED_SQLSTATE;
SIGNAL SQLSTATE '01002';
GET CURRENT DIAGNOSTICS CONDITION 1 @y = RETURNED_SQLSTATE;
END;
SIGNAL SQLSTATE '01001';
SELECT @x, @y;
END|
CALL p1();
@x	@y
01001	01002
Warnings:
Warning	1642	Unhandled user-defined warning condition
DROP PROCEDURE p1;

# Using OUT and INOUT parameters as the target variables.

CREATE PROCEDURE p1(OUT number INT, INOUT message TEXT)
BEGIN
DECLARE warn CONDITION FOR SQLSTATE "01234";
DECLARE CONTINUE HANDLER FOR SQLWARNING
BEGIN
GET DIAGNOSTICS number = NUMBER;
GET DIAGNOSTICS CONDITION 1 message = MESSAGE_TEXT;
END;
SELECT message;
SIGNAL warn SET MESSAGE_TEXT = "inout parameter";
END|
SET @var1 = 0;
SET @var2 = "message text";
CALL p1(@var1, @var2);
message
message text
SELECT @var1, @var2;
@var1	@var2
1	inout parameter
DROP PROCEDURE p1;

# Using an IN parameter as the target variable.

CREATE PROCEDURE p1(IN number INT)
BEGIN
SELECT number;
GET DIAGNOSTICS number = NUMBER;
SELECT number;
END|
SET @var1 = 9999;
CALL p1(@var1);
number
9999
number
0
SELECT @var1;
@var1
9999
DROP PROCEDURE p1;

# Using GET DIAGNOSTICS in a stored function.

CREATE FUNCTION f1() RETURNS TEXT
BEGIN
DECLARE message TEXT;
DECLARE warn CONDITION FOR SQLSTATE "01234";
DECLARE CONTINUE HANDLER FOR SQLWARNING
BEGIN
GET DIAGNOSTICS CONDITION 1 message = MESSAGE_TEXT;
END;
SIGNAL warn SET MESSAGE_TEXT = "message text";
return message;
END|
SELECT f1();
f1()
message text
DROP FUNCTION f1;

# Using GET DIAGNOSTICS in a trigger.

CREATE TABLE t1 (a INT);
CREATE TRIGGER trg1 BEFORE INSERT ON t1 FOR EACH ROW
BEGIN
DECLARE var INT DEFAULT row_count();
GET DIAGNOSTICS @var1 = ROW_COUNT;
SET @var2 = var;
END|
SET @var1 = 9999, @var2 = 9999;
INSERT INTO t1 VALUES (1), (2);
SELECT @var1, @var2;
@var1	@var2
0	0
DROP TRIGGER trg1;
DROP TABLE t1;

# GET DIAGNOSTICS does not reset ROW_COUNT

CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1);
GET DIAGNOSTICS @var1 = ROW_COUNT;
GET DIAGNOSTICS @var2 = ROW_COUNT;
SELECT @var1, @var2;
@var1	@var2
1	1
DROP TABLE t1;

# Items are UTF8 (utf8_general_ci default collation)

SELECT CAST(-19999999999999999999 AS SIGNED);
CAST(-19999999999999999999 AS SIGNED)
-9223372036854775808
Warnings:
Warning	1916	Got overflow when converting '-19999999999999999999' to INT. Value truncated.
GET DIAGNOSTICS CONDITION 1 @var1 = MESSAGE_TEXT, @var2 = CLASS_ORIGIN;
SELECT CHARSET(@var1), COLLATION(@var1), COERCIBILITY(@var1);
CHARSET(@var1)	COLLATION(@var1)	COERCIBILITY(@var1)
utf8	utf8_general_ci	2
SELECT CHARSET(@var2), COLLATION(@var2), COERCIBILITY(@var2);
CHARSET(@var2)	COLLATION(@var2)	COERCIBILITY(@var2)
utf8	utf8_general_ci	2
#
# Command statistics
#
FLUSH STATUS;
SHOW STATUS LIKE 'Com%get_diagnostics';
Variable_name	Value
Com_get_diagnostics	0
GET DIAGNOSTICS @var1 = NUMBER;
SHOW STATUS LIKE 'Com%get_diagnostics';
Variable_name	Value
Com_get_diagnostics	1
