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eg.default-character-set=latin1
default-collation=latin1_swedish_ci
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MySQLÔ´Â룺
/* Set table default charset, if not set
SYNOPSIS
set_table_default_charset()
create_info Table create information
DESCRIPTION
If the table character set was not given explicitely,
let’s fetch the database default character set and
apply it to the table. */
static void set_table_default_charset(THD *thd,
HA_CREATE_INFO *create_info, char *db)
{
if (!create_info->default_table_charset)
{
HA_CREATE_INFO db_info;
load_db_opt_by_name(thd, db, &db_info);
create_info->default_table_charset= db_info.default_table_charset;
}
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create database if not exists test default [charset|character set ] utf8
default collate utf8_general_ci;
ÐÞ¸ÄÊý¾Ý¿âµÄ×Ö·û¼¯ºÍ×Ö·û¼¯Ð£Ñé¹æÔò£º
alter database test default [charset|character set ] latin1 default collate
latin1_swedish_ci;
´´½¨Êý¾Ý¿âcreate database
CREATE {DATABASE | SCHEMA} [IF NOT EXISTS] db_name
[create_specification] …
create_specification:
[DEFAULT] CHARACTER SET [=] charset_name
| [DEFAULT] COLLATE [=] collation_name
Ò²¿ÉÒÔͨ¹ýalter databaseÐÞ¸Ä
ALTER {DATABASE | SCHEMA} [db_name]
alter_specification …
alter_specification:
[DEFAULT] CHARACTER SET [=] charset_name
| [DEFAULT] COLLATE [=] collation_name 
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2:
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5: `userID` int(10) unsigned NOT NULL AUTO_INCREMENT,
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| Database           |
+--------------------+
| information_schema |
| mysql              |
| test     &n ......
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