Oracle 5.0 Reference Manual page 461

The size of the cache to hold the SQL statements for the binary log during a transaction. A binary
log cache is allocated for each client if the server supports any transactional storage engines
and if the server has the binary log enabled
multiple-statement transactions, you can increase this cache size to get better performance. The
Binlog_cache_use
for tuning the size of this variable. See
•
bulk_insert_buffer_size
Command-Line Format
Option-File Format
Option Sets Variable
Variable Name
Variable Scope
Dynamic Variable
uses a special tree-like cache to make bulk inserts faster for
MyISAM
INSERT ... VALUES (...), (...),
nonempty tables. This variable limits the size of the cache tree in bytes per thread. Setting it to 0
disables this optimization. The default value is 8MB.
•
character_set_client
Variable Name
Variable Scope
Dynamic Variable
The character set for statements that arrive from the client. The session value of this variable is
set using the character set requested by the client when the client connects to the server. (Many
clients support a
--default-character-set
explicitly. See also Section 10.1.4, "Connection Character Sets and
the variable is used to set the session value in cases when the client-requested value is unknown or
not available, or the server is configured to ignore client requests:
• The client is from a version of MySQL older than MySQL 4.1, and thus does not request a
character set.
Server System Variables
(--log-bin
[523] and
Binlog_cache_disk_use
Section 5.2.3, "The Binary
[441]
--bulk_insert_buffer_size=#
bulk_insert_buffer_size
Yes,
bulk_insert_buffer_size
bulk_insert_buffer_size
Global, Session
Yes
Permitted Values
Platform
32
Bit Size
Type
numeric
Default
8388608
Range
0 .. 4294967295
Permitted Values
Platform
64
Bit Size
Type
numeric
Default
8388608
Range
0 .. 18446744073709547520
..., and
[441]
character_set_client
Global, Session
Yes
Permitted Values
Type
string
441
[1467] option). If you often use large,
[523] status variables can be useful
Log".
[441]
INSERT ...
LOAD DATA INFILE
option to enable this character set to be specified
Collations".) The global value of
SELECT,
when adding data to