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28 lines
927 B
Plaintext
28 lines
927 B
Plaintext
CREATE TABLE t1(id INT);
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CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 WHERE id>10;
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INSERT INTO t1 VALUES (5), (8), (10), (20), (30);
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SELECT * FROM t1;
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SELECT * FROM v1;
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--error ER_TABLE_EXISTS_ERROR
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CREATE VIEW v1 AS SELECT * FROM t1 WHERE id>11;
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SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1';
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CREATE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 WHERE id>12;
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SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1';
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--error ER_WRONG_USAGE
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CREATE OR REPLACE VIEW IF NOT EXISTS v1 AS SELECT * FROM t1 WHERE id>13;
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SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1';
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CREATE OR REPLACE VIEW v1 AS SELECT * FROM t1 WHERE id>14;
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SELECT VIEW_DEFINITION FROM INFORMATION_SCHEMA.VIEWS WHERE TABLE_NAME='v1';
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INSERT INTO t1 VALUES (50), (80), (3), (2), (40);
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SELECT * FROM t1;
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SELECT * FROM v1;
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DROP VIEW IF EXISTS v1;
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DROP VIEW IF EXISTS v1;
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DROP TABLE t1;
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