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SELECT * FROM `SYSTEM_VARIABLES`
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VARIABLE_NAME SESSION_VALUE GLOBAL_VALUE GLOBAL_VALUE_ORIGIN DEFAULT_VALUE VARIABLE_SCOPE VARIABLE_TYPE VARIABLE_COMMENT NUMERIC_MIN_VALUE NUMERIC_MAX_VALUE NUMERIC_BLOCK_SIZE ENUM_VALUE_LIST READ_ONLY COMMAND_LINE_ARGUMENT
INNODB_LOCKS_UNSAFE_FOR_BINLOG NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN DEPRECATED. This option may be removed in future r... NULL NULL NULL OFF,ON YES NONE
PERFORMANCE_SCHEMA NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enable the performance schema. NULL NULL NULL OFF,ON YES OPTIONAL
SQL_MODE NO_ZERO_IN_DATE,NO_ZERO_DATE,NO_ENGINE_SUBSTITUTIO... NO_ZERO_IN_DATE,NO_ZERO_DATE,NO_ENGINE_SUBSTITUTIO... CONFIG 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 INT Number of rows in EVENTS_WAITS_HISTORY_LONG. Use 0... -1 1048576 1 NULL YES REQUIRED
RPL_SEMI_SYNC_SLAVE_ENABLED NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enable semi-synchronous replication slave (disable... NULL NULL NULL OFF,ON NO OPTIONAL
PERFORMANCE_SCHEMA_MAX_COND_CLASSES NULL 90 COMPILE-TIME 90 GLOBAL INT UNSIGNED Maximum number of condition instruments. 0 256 1 NULL YES REQUIRED
GENERAL_LOG_FILE NULL iZ23kbyrhb7Z.log SQL GLOBAL VARCHAR Log connections and queries to given file NULL NULL NULL NULL NO REQUIRED
PERFORMANCE_SCHEMA_MAX_COND_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL INT Maximum number of instrumented condition objects. ... -1 1048576 1 NULL YES REQUIRED
INNODB_BUFFER_POOL_LOAD_AT_STARTUP NULL ON COMPILE-TIME ON GLOBAL BOOLEAN Load the buffer pool from a file named @@innodb_bu... NULL NULL NULL OFF,ON YES REQUIRED
PERFORMANCE_SCHEMA_MAX_RWLOCK_CLASSES NULL 40 COMPILE-TIME 40 GLOBAL INT 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
LOG_BIN_COMPRESS NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Whether the binary log can be compressed NULL NULL NULL OFF,ON NO OPTIONAL
INNODB_ENCRYPT_TEMPORARY_TABLES NULL OFF COMPILE-TIME OFF GLOBAL BOOLEAN Enrypt the temporary table data. NULL NULL NULL OFF,ON YES OPTIONAL
MAX_CONNECT_ERRORS NULL 100 COMPILE-TIME 100 GLOBAL INT UNSIGNED If there is more than this number of interrupted c... 1 4294967295 1 NULL NO REQUIRED
READ_BINLOG_SPEED_LIMIT NULL 0 COMPILE-TIME 0 GLOBAL BIGINT UNSIGNED Maximum speed(KB/s) to read binlog from master (0 ... 0 4294967295 1 NULL NO REQUIRED
PERFORMANCE_SCHEMA_MAX_MUTEX_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL INT Maximum number of instrumented MUTEX objects. Use ... -1 104857600 1 NULL YES REQUIRED
EXTERNAL_USER NULL COMPILE-TIME NULL SESSION ONLY VARCHAR The external user account used when logging in NULL NULL NULL NULL YES NULL
PERFORMANCE_SCHEMA_MAX_RWLOCK_INSTANCES NULL -1 COMPILE-TIME -1 GLOBAL INT Maximum number of instrumented RWLOCK objects. Use... -1 104857600 1 NULL YES REQUIRED
PROTOCOL_VERSION NULL 10 COMPILE-TIME NULL GLOBAL INT UNSIGNED The version of the client/server protocol used by ... 0 4294967295 1 NULL YES NULL
PERFORMANCE_SCHEMA_MAX_MUTEX_CLASSES NULL 200 COMPILE-TIME 200 GLOBAL INT 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 INT 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 INT 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 INT Maximum number of instrumented user@host accounts.... -1 1048576 1 NULL YES REQUIRED
SLAVE_EXEC_MODE NULL STRICT COMPILE-TIME STRICT GLOBAL ENUM How replication events should be executed. Legal v... NULL NULL NULL STRICT,IDEMPOTENT NO REQUIRED
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