SET @saved_dbug = @@SESSION.debug_dbug;
set @@debug_dbug= 'd,opt' ;
CREATE TABLE t1 (pk INT PRIMARY KEY) ENGINE=MyISAM;
CREATE TABLE t2 (
f1 DATE,
f2 VARCHAR(1024 ),
f3 VARCHAR(10 ),
f4 DATE,
f5 VARCHAR(10 ),
f6 VARCHAR(10 ),
f7 VARCHAR(10 ),
f8 DATETIME,
f9 INT,
f10 VARCHAR(1024 ),
f11 VARCHAR(1024 ),
f12 INT,
f13 VARCHAR(1024 )
) ENGINE=MyISAM;
CREATE OR REPLACE VIEW v2 AS SELECT * FROM t2;
CREATE TABLE t3 (
f1 VARCHAR(1024 ),
f2 VARCHAR(1024 ),
f3 DATETIME,
f4 VARCHAR(10 ),
f5 INT,
f6 VARCHAR(10 ),
f7 VARCHAR(1024 ),
f8 VARCHAR(10 ),
f9 INT,
f10 DATE,
f11 INT,
f12 VARCHAR(1024 ),
f13 VARCHAR(10 ),
f14 DATE,
f15 DATETIME
) ENGINE=MyISAM;
CREATE OR REPLACE ALGORITHM=TEMPTABLE VIEW v3 AS SELECT * FROM t3;
INSERT INTO t3 VALUES
('FOO' ,'foo' ,'2000-08-04 00:00:00' ,'one' ,1 ,'1' ,'FOO' ,'foo' ,1 ,'2004-05-09' ,1 ,'one' ,'one' ,'2001-12-07' ,'2001-10-17 08:25:04' ),
('BAR' ,'bar' ,'2001-01-01 04:52:37' ,'two' ,2 ,'2' ,'BAR' ,'bar' ,2 ,'2008-01-01' ,2 ,'two' ,'two' ,'2006-06-19' ,'2002-01-01 08:22:49' );
CREATE TABLE t4 (f1 VARCHAR(10 ), f2 INT) ENGINE=MyISAM;
SELECT * FROM t1;
pk
SELECT non_existing FROM v2;
ERROR 42 S22: Unknown column 'non_existing' in 'SELECT'
SELECT * FROM t1, v3, t4 WHERE v3.f1 = t4.f1 AND t4.f2 = 6 AND t1.pk = v3.f5;
pk f1 f2 f3 f4 f5 f6 f7 f8 f9 f10 f11 f12 f13 f14 f15 f1 f2
drop table t1,t2,t3,t4;
drop view v2,v3;
SET debug_dbug= @saved_dbug;
Messung V0.5 in Prozent C=70 H=100 G=86
¤ Dauer der Verarbeitung: 0.1 Sekunden
(vorverarbeitet am 2026-10-08)
¤
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