drop table if exists t1,t2;
CREATE TABLE t1(
c1 INT DEFAULT 12 COMMENT 'column1' ,
c2 INT NULL COMMENT 'column2' ,
c3 INT NOT NULL COMMENT 'column3' ,
c4 VARCHAR(255 ) CHARACTER SET utf8 NOT NULL DEFAULT 'a' ,
c5 VARCHAR(255 ) COLLATE utf8_unicode_ci NULL DEFAULT 'b' ,
c6 VARCHAR(255 ))
COLLATE latin1_bin;
SHOW CREATE TABLE t1;
Table Create Table
t1 CREATE TABLE `t1` (
`c1` int(11 ) DEFAULT 12 COMMENT 'column1' ,
`c2` int(11 ) DEFAULT NULL COMMENT 'column2' ,
`c3` int(11 ) NOT NULL COMMENT 'column3' ,
`c4` varchar(255 ) CHARACTER SET utf8mb4 COLLATE utf8mb4_uca1400_ai_ci NOT NULL DEFAULT 'a' ,
`c5` varchar(255 ) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT 'b' ,
`c6` varchar(255 ) DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=latin1 COLLATE=latin1_bin
CREATE TABLE t2 AS SELECT * FROM t1;
SHOW CREATE TABLE t2;
Table Create Table
t2 CREATE TABLE `t2` (
`c1` int(11 ) DEFAULT 12 COMMENT 'column1' ,
`c2` int(11 ) DEFAULT NULL COMMENT 'column2' ,
`c3` int(11 ) NOT NULL COMMENT 'column3' ,
`c4` varchar(255 ) NOT NULL DEFAULT 'a' ,
`c5` varchar(255 ) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT 'b' ,
`c6` varchar(255 ) CHARACTER SET latin1 COLLATE latin1_bin DEFAULT NULL
) ENGINE=MyISAM DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_uca1400_ai_ci
DROP TABLE t1,t2;
Messung V0.5 in Prozent C=81 H=100 G=90
¤ Dauer der Verarbeitung: 0.10 Sekunden
(vorverarbeitet am 2026-10-08)
¤
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