mysql case sensitive in utf8_general_ci

Question

I\'ve a mysql database where i use utf8_general_ci (that is case insensitive), and in my tables i have some columns like ID with case-sensitive data (example: \'iSZ6fX\' or \'As

Answer 1

The effect of BINARY as a column attribute differs from its effect prior to MySQL 4.1. Formerly, BINARY resulted in a column that was treated as a binary string. A binary string is a string of bytes that has no character set or collation, which differs from a nonbinary character string that has a binary collation.

But Now

The BINARY operator casts the string following it to a binary string. This is an easy way to force a comparison to be done byte by byte rather than character by character. BINARY also causes trailing spaces to be significant. BINARY str is shorthand for CAST(str AS BINARY).

The BINARY attribute in character column definitions has a different effect. A character column defined with the BINARY attribute is assigned the binary collation of the column character set. Every character set has a binary collation. For example, the binary collation for the latin1 character set is latin1_bin, so if the table default character set is latin1, these two column definitions are equivalent:

CHAR(10) BINARY

CHAR(10) CHARACTER SET latin1 COLLATE latin1_bin