![]() Select the days that contain the substring "es": SELECT * FROM t1 WHERE d LIKE "%es%" SELECT * FROM t1 WHERE d LIKE "%es%" ![]() Select the days that begin with "T": CREATE TABLE t1 ( d VARCHAR ( 16 )) INSERT INTO t1 VALUES ( "Monday" ), ( "Tuesday" ), ( "Wednesday" ), ( "Thursday" ), ( "Friday" ), ( "Saturday" ), ( "Sunday" ) SELECT * FROM t1 WHERE d LIKE "T%" SELECT * FROM t1 WHERE d LIKE "T%" To avoid difficulties with the backslash character, you can change the wildcard escapeĬharacter using ESCAPE in a LIKE expression. Thus, to match anĪctual backslash, you sometimes need to double-escape it as "\ \ \ \". Parsed as well as to escape wildcards in a pattern after parsing. The backslash is used both to encode special characters like newlines when a string is You can prefix the wildcard characters the backslash character \ to escape them. If you need to match the characters _ or %, you must escape them. Use CONVERT to use the expression in a different character set. Will not match _latin1"€" because the Euro sign is not a valid latin1 character. For example, _ will match _utf8"€", but it If it is valid in the expression's character set. It will only match a multi-byte character The _ wildcard matches a single character, not byte. Numeric arguments are coerced to binary strings. Collations ending in _bin are case-sensitive. Use SHOW COLLATION to get a list ofĪvailable collations. To use a binary collation using COLLATE, or coerce either of them to a BINARY For case-sensitive matches, declare either argument LIKE performs case-insensitive substring matches if the collation for theĮxpression and pattern is case-insensitive. If either the expression or the pattern is NULL, the result is NULL. The NOT operator on the entire LIKE expression. Use NOT LIKE to test if a string does not match a pattern.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |