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48 lines
1.3 KiB
Plaintext
48 lines
1.3 KiB
Plaintext
#
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# Test NULLIF, IFNULL, ISNULL functions
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# Author: Bharath, bharath.bokka@mariadb.com
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#
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-- source ../include/have_columnstore.inc
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--source ../include/charset.inc
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--disable_warnings
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DROP DATABASE IF EXISTS mcs171_db;
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--enable_warnings
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CREATE DATABASE mcs171_db;
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USE mcs171_db;
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SET default_storage_engine=Columnstore;
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CREATE TABLE t1 (a CHAR(1), b INT, c DATETIME, d DOUBLE);
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INSERT INTO t1 VALUES (NULL, NULL, '0-0-0', NULL),('a', 12, '1212-12-12', 1.19691E+100),('b', 13, '1313-3-13 13:13:13', 2.1961E+18),('c', 14, '1414-4-14', 0.16191),('d', 15, '2015-5-15 15:15:15', 1.971917);
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--replace_regex /( COLLATE=latin1_swedish_ci)//
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SHOW CREATE TABLE t1;
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SELECT IFNULL(NULL, 'abc');
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SELECT IFNULL(NULL, 123);
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SELECT IFNULL('abc', 123);
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SELECT ISNULL(NULL);
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SELECT ISNULL(1);
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SELECT ISNULL('a');
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SELECT NULLIF(1, 1);
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SELECT NULLIF('abc', 'a');
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--disable_warnings
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SELECT NULLIF(1, 'abcd');
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--enable_warnings
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SELECT a, ISNULL(a) FROM t1;
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SELECT b, ISNULL(b) FROM t1;
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SELECT c, ISNULL(c) FROM t1;
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SELECT d, ISNULL(d) FROM t1;
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SELECT a, IFNULL(a, 'Null Char') FROM t1;
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SELECT b, IFNULL(b, 'Null Integer') FROM t1;
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SELECT c, IFNULL(d, 'Null Decimal') FROM t1;
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SELECT a, NULLIF(a, 'c') FROM t1;
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SELECT b, NULLIF(b, 15) FROM t1;
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SELECT c, NULLIF(c, '2015-5-15') FROM t1;
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# Clean UP
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DROP DATABASE mcs171_db;
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