“There are 10 types of people in the world — those who understand binary, and those who don’t.”
The term “binary” in MySQL has many different meanings. How many can you come up with? I have 6, but I am willing to believe there are more!
0) “Binary distribution” is the name for the package that contains a binary. Another use is “binary installation” but that’s pretty much the same usage pattern as “binary distribution”, so I won’t count “binary installation” as a separate usage.
1) “Server binary” or “client binary” is the actual program (
2) “Binary format” is a compressed format. For example,
DECIMAL is stored in a “binary format” — each group of nine digits is compressed into 4 bytes.
3) “Binary log” is the change log. You can argue that this is an extension of #3, because the binary log is a compressed log, but “binary log” is encountered ubiquitously in the MySQL world, and “binary format” is somewhat obscure knowledge.
CHARSET” – sets the collation to be case-insensitive. For instance,
latin1_bin are the binary collations for the
latin1 character sets, respectively.
5) “Binary string” – a byte string. This is also known as the
BINARY data type. There is some kind of wit/pun in the fact that a number in binary is actually a “bit string”.
Any more I missed? There are over 1600 mentions of the word “binary” in the 5.0 manual!
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