25 lines
773 B
Plaintext
25 lines
773 B
Plaintext
DROP TABLE IF EXISTS t7;
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SET sql_mode='NO_ENGINE_SUBSTITUTION';
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CREATE TABLE t7(c1 ENUM('a','abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij') NULL);
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INSERT INTO t7(c1) VALUES(NULL);
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INSERT INTO t7(c1) VALUES('');
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Warnings:
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Warning 1265 Data truncated for column 'c1' at row 1
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INSERT INTO t7(c1) VALUES('a');
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INSERT INTO t7(c1) VALUES('abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij');
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INSERT INTO t7(c1) VALUES('abcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghijabcdefghij');
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Warnings:
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Warning 1265 Data truncated for column 'c1' at row 1
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SELECT * FROM t7;
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c1
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NULL
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a
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abcdefghijabcdefghijabcdefghijabcdefghijabcdefghij
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SELECT COUNT(c1) AS null_rows FROM t7 WHERE c1 IS NULL;
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null_rows
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0
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DROP TABLE t7;
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SET sql_mode=default;
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