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Server: localhost »Basis data: information_schema »Gambarkan: SYSTEM_VARIABLES
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SELECT * FROM `SYSTEM_VARIABLES`
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VARIABLE_NAMESESSION_VALUEGLOBAL_VALUEGLOBAL_VALUE_ORIGINDEFAULT_VALUEVARIABLE_SCOPEVARIABLE_TYPEVARIABLE_COMMENTNUMERIC_MIN_VALUENUMERIC_MAX_VALUENUMERIC_BLOCK_SIZEENUM_VALUE_LISTREAD_ONLYCOMMAND_LINE_ARGUMENT
COLUMN_COMPRESSION_THRESHOLD 100 100 COMPILE-TIME 100 SESSION INT UNSIGNED Minimum column data length eligible for compressio... 0 4294967295 1 NULL NO REQUIRED
PERFORMANCE_SCHEMA NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enable the performance schema. NULL NULL NULL OFF,ON YES OPTIONAL
SQL_MODE STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_... STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_... COMPILE-TIME STRICT_TRANS_TABLES,ERROR_FOR_DIVISION_BY_ZERO,NO_... SESSION SET Sets the sql mode NULL NULL NULL REAL_AS_FLOAT,PIPES_AS_CONCAT,ANSI_QUOTES,IGNORE_S... NO REQUIRED
PERFORMANCE_SCHEMA_EVENTS_WAITS_HISTORY_LONG_SIZE NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Number of rows in EVENTS_WAITS_HISTORY_LONG. Use 0... -1 1048576 1 NULL YES REQUIRED
ARIA_PAGECACHE_DIVISION_LIMIT NULL 100 COMPILE-TIME 100 GLOBAL BIGINT UNSIGNED The minimum percentage of warm blocks in key cache 1 100 1 NULL NO REQUIRED
PERFORMANCE_SCHEMA_MAX_COND_CLASSES NULL 80 COMPILE-TIME 80 GLOBAL BIGINT UNSIGNED Maximum number of condition instruments. 0 256 1 NULL YES REQUIRED
BINLOG_CACHE_SIZE NULL 32768 COMPILE-TIME 32768 GLOBAL BIGINT UNSIGNED The size of the transactional cache for updates to... 4096 18446744073709551615 4096 NULL NO REQUIRED
PERFORMANCE_SCHEMA_MAX_COND_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented condition objects. ... -1 1048576 1 NULL YES REQUIRED
INNODB_DEFRAGMENT NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enable/disable InnoDB defragmentation (default FAL... NULL NULL NULL OFF,ON NO REQUIRED
PERFORMANCE_SCHEMA_MAX_RWLOCK_CLASSES NULL 40 COMPILE-TIME 40 GLOBAL BIGINT UNSIGNED Maximum number of rwlock instruments. 0 256 1 NULL YES REQUIRED
INNODB_FLUSH_LOG_AT_TIMEOUT NULL 1 COMPILE-TIME 1 GLOBAL INT UNSIGNED Write and flush logs every (n) second. 0 2700 0 NULL NO OPTIONAL
MAX_SORT_LENGTH 1024 1024 COMPILE-TIME 1024 SESSION BIGINT UNSIGNED The number of bytes to use when sorting BLOB or TE... 4 8388608 1 NULL NO REQUIRED
INNODB_ENCRYPT_TEMPORARY_TABLES NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enrypt the temporary table data. NULL NULL NULL OFF,ON YES OPTIONAL
COLUMN_COMPRESSION_ZLIB_LEVEL 6 6 COMPILE-TIME 6 SESSION INT UNSIGNED zlib compression level (1 gives best speed, 9 give... 0 9 1 NULL NO REQUIRED
PERFORMANCE_SCHEMA_HOSTS_SIZE NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented hosts. Use 0 to dis... -1 1048576 1 NULL YES REQUIRED
PERFORMANCE_SCHEMA_MAX_MUTEX_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented MUTEX objects. Use ... -1 104857600 1 NULL YES REQUIRED
MAX_INSERT_DELAYED_THREADS 20 20 COMPILE-TIME 20 SESSION BIGINT UNSIGNED Don't start more than this number of threads to ha... 0 16384 1 NULL NO NULL
PERFORMANCE_SCHEMA_MAX_RWLOCK_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented RWLOCK objects. Use... -1 104857600 1 NULL YES REQUIRED
WSREP_TRX_FRAGMENT_UNIT bytes bytes COMPILE-TIME bytes SESSION ENUM Unit for streaming replication transaction fragmen... NULL NULL NULL bytes,rows,statements NO REQUIRED
PERFORMANCE_SCHEMA_MAX_MUTEX_CLASSES NULL 200 COMPILE-TIME 200 GLOBAL BIGINT UNSIGNED Maximum number of mutex instruments. 0 256 1 NULL YES REQUIRED
INNODB_STATS_TRANSIENT_SAMPLE_PAGES NULL 8 COMPILE-TIME 8 GLOBAL BIGINT UNSIGNED The number of leaf index pages to sample when calc... 1 18446744073709551615 0 NULL NO REQUIRED
NET_WRITE_TIMEOUT 60 60 COMPILE-TIME 60 SESSION BIGINT UNSIGNED Number of seconds to wait for a block to be writte... 1 31536000 1 NULL NO REQUIRED
SLOW_LAUNCH_TIME NULL 2 COMPILE-TIME 2 GLOBAL BIGINT UNSIGNED If creating the thread takes longer than this valu... 0 31536000 1 NULL NO REQUIRED
PERFORMANCE_SCHEMA_ACCOUNTS_SIZE NULL -1 COMPILE-TIME -1 GLOBAL BIGINT Maximum number of instrumented user@host accounts.... -1 1048576 1 NULL YES REQUIRED
HAVE_RTREE_KEYS NULL YES COMPILE-TIME NULL GLOBAL VARCHAR If RTREE indexes (used for spatial indexes) are av... NULL NULL NULL NULL YES NULL

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