67 lines
1.3 KiB
SQL
67 lines
1.3 KiB
SQL
--
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-- VARCHAR
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--
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CREATE TABLE VARCHAR_TBL(f1 varchar(1));
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INSERT INTO VARCHAR_TBL (f1) VALUES ('a');
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INSERT INTO VARCHAR_TBL (f1) VALUES ('A');
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-- any of the following three input formats are acceptable
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INSERT INTO VARCHAR_TBL (f1) VALUES ('1');
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INSERT INTO VARCHAR_TBL (f1) VALUES (2);
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INSERT INTO VARCHAR_TBL (f1) VALUES ('3');
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-- zero-length char
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INSERT INTO VARCHAR_TBL (f1) VALUES ('');
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-- try varchar's of greater than 1 length
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INSERT INTO VARCHAR_TBL (f1) VALUES ('cd');
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INSERT INTO VARCHAR_TBL (f1) VALUES ('c ');
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SELECT '' AS seven, * FROM VARCHAR_TBL;
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SELECT '' AS six, c.*
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FROM VARCHAR_TBL c
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WHERE c.f1 <> 'a';
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SELECT '' AS one, c.*
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FROM VARCHAR_TBL c
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WHERE c.f1 = 'a';
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SELECT '' AS five, c.*
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FROM VARCHAR_TBL c
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WHERE c.f1 < 'a';
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SELECT '' AS six, c.*
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FROM VARCHAR_TBL c
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WHERE c.f1 <= 'a';
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SELECT '' AS one, c.*
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FROM VARCHAR_TBL c
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WHERE c.f1 > 'a';
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SELECT '' AS two, c.*
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FROM VARCHAR_TBL c
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WHERE c.f1 >= 'a';
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DROP TABLE VARCHAR_TBL;
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--
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-- Now test longer arrays of char
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--
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CREATE TABLE VARCHAR_TBL(f1 varchar(4));
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INSERT INTO VARCHAR_TBL (f1) VALUES ('a');
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INSERT INTO VARCHAR_TBL (f1) VALUES ('ab');
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INSERT INTO VARCHAR_TBL (f1) VALUES ('abcd');
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INSERT INTO VARCHAR_TBL (f1) VALUES ('abcde');
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INSERT INTO VARCHAR_TBL (f1) VALUES ('abcd ');
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SELECT '' AS four, * FROM VARCHAR_TBL;
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