将文件拖动至此

SQL 上传 ( 0 ) x -

页面相关设置 点击以滚动到页面顶部
按 Ctrl+Enter 键执行查询 按 Enter 执行查询
递增排序
递减排序
命令：
调试 SQL
数量
运行顺序
用时
排序条件：
联合查询
不使用联合查询
崩溃 扩展 显示跟踪 隐藏跟踪 数量 : 用时 :
书签
刷新
添加
没有书签
添加书签
选项
恢复默认





崩溃 扩展 重新查询 编辑 解析 性能分析 书签 查询失败 数据库 : 查询时间 :
自定义浏览模式。
浏览模式
文档 仅使用图标、文字或都使用。 还原为默认值
文档 仅使用图标、文字或都使用。 还原为默认值
文档 设置是否给用户显示一个 "显示所有 (记录)" 的按钮。 还原为默认值
文档 浏览结果集时显示的行数。若结果集总行数超过该值，将会显示 "上一页" 和 "下一页" 的链接。 还原为默认值
文档 SMART - 即对 TIME、DATE、DATETIME 和 TIMESTAMP 类型的字段递减排序，其它字段递增。 还原为默认值
文档 高亮鼠标指针所在的行。 还原为默认值
文档 高亮选中的行。 还原为默认值
文档 还原为默认值
文档 还原为默认值
文档 每 X 单元格重复表头，要禁止此功能请设为 0。 还原为默认值
文档 浏览非数字字段时最多显示的字数。 还原为默认值
文档 这些是编辑、复制和删除链接。 还原为默认值
文档 缺少唯一键时是否显示行链接。 还原为默认值
文档 默认用主键为表排序。 还原为默认值
文档 当浏览表时使用上次的排序方式。 还原为默认值
文档 显示选项 还原为默认值 
SELECT * FROM `SYSTEM_VARIABLES`
[ 编辑内嵌 ] [ 编辑 ] [ 解析 SQL ] [ 创建 PHP 代码 ] [ 刷新 ]
|
|
|
|
过滤行:
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
WSREP_CAUSAL_READS OFF OFF COMPILE-TIME OFF SESSION BOOLEAN Setting this variable is equivalent to setting wsr... NULL NULL NULL OFF,ON NO OPTIONAL
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
SLAVE_TYPE_CONVERSIONS NULL COMPILE-TIME GLOBAL SET Set of slave type conversions that are enabled. If... NULL NULL NULL ALL_LOSSY,ALL_NON_LOSSY NO REQUIRED
PERFORMANCE_SCHEMA_MAX_COND_CLASSES NULL 90 COMPILE-TIME 90 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
KEY_CACHE_BLOCK_SIZE NULL 1024 COMPILE-TIME 1024 GLOBAL BIGINT UNSIGNED The default size of key cache blocks 512 16384 512 NULL 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... 64 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
SLOW_QUERY_LOG_FILE NULL Webserver-slow.log COMPILE-TIME GLOBAL VARCHAR Log slow queries to given log file. Defaults loggi... NULL NULL NULL NULL 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
INSERT_ID 0 NULL COMPILE-TIME 0 SESSION ONLY BIGINT UNSIGNED The value to be used by the following INSERT or AL... 0 18446744073709551615 1 NULL NO NULL
|
|
|
|
过滤行:
查询结果操作 复制到剪贴板 复制到剪贴板 导出 导出 显示图表 显示图表 新建视图 新建视图
将此 SQL 查询加为书签 将此 SQL 查询加为书签