Oracle 5.0 Reference Manual page 27

Statements and Functions:
• Full operator and function support in the
mysql> SELECT CONCAT(first_name, ' ', last_name)
-> FROM citizen
-> WHERE income/dependents > 10000 AND age > 30;
• Full support for SQL
(COUNT()
GROUP_CONCAT()
• Support for
syntax.
• Support for aliases on tables and columns as required by standard SQL.
• Support for DELETE, INSERT, REPLACE, and
changed (affected), or to return the number of rows matched instead by setting a flag when
connecting to the server.
• Support for MySQL-specific
engines, tables, and indexes. MySQL 5.0 adds support for the
implemented according to standard SQL.
• An
EXPLAIN
• Independence of function names from table or column names. For example,
name. The only restriction is that for a function call, no spaces are permitted between the function
name and the "(" that follows it. See
• You can refer to tables from different databases in the same statement.
Security:
• A privilege and password system that is very flexible and secure, and that enables host-based
verification.
• Password security by encryption of all password traffic when you connect to a server.
Scalability and Limits:
• Support for large databases. We use MySQL Server with databases that contain 50 million records.
We also know of users who use MySQL Server with 200,000 tables and about 5,000,000,000 rows.
• Support for up to 64 indexes per table (32 before MySQL 4.1.2). Each index may consist of 1 to 16
columns or parts of columns. The maximum index width is 767 bytes for
MyISAM; before MySQL 4.1.2, the limit is 500 bytes. An index may use a prefix of a column for CHAR,
VARCHAR, BLOB, or
Connectivity:
• Clients can connect to MySQL Server using several protocols:
• Clients can connect using TCP/IP sockets on any platform.
• On Windows systems in the NT family (NT, 2000, XP, 2003, or Vista), clients can connect using
named pipes if the server is started with the
4.1 and higher, Windows servers also support shared-memory connections if started with the
shared-memory
protocol=memory
• On Unix systems, clients can connect using Unix domain socket files.
The Main Features of MySQL
and
GROUP BY
[970], [969],
AVG() STD()
[970]).
and
LEFT OUTER JOIN
SHOW
statement to show how the optimizer resolves a query.
column types.
TEXT
[420] option. Clients can connect through shared memory by using the
option.
list and
SELECT WHERE
clauses. Support for group functions
ORDER BY
[971], [972],
SUM()
RIGHT OUTER JOIN
to return the number of rows that were
UPDATE
statements that retrieve information about databases, storage
Section 9.3, "Reserved
--enable-named-pipe
7
clause of queries. For example:
[971], [971], and
MAX() MIN()
with both standard SQL and ODBC
INFORMATION_SCHEMA
ABS
Words".
tables, or 1000 for
InnoDB
[407] option. In MySQL
database,
is a valid column
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