In the GRT Modules are libraries containing a list of functions that are exported for use by code in other modules, scripts, or Workbench itself. Modules can be written in C++ or Python, but the data types used for arguments and the return value must be GRT types. GRT...
To list all views:SHOW FULL TABLES WHERE TABLE_TYPE LIKE 'VIEW'; 深入理解mysql视图 EVENTS:事件 查看事件调度是否打开:show variables like '%event_scheduler%'; 启动事件调度:SET GLOBAL event_scheduler = ON; PROCESSLIST: One of the most used views is the process list. It lists all the queries...
►Modules ►Namespaces ►Concepts ▼Classes ►Class List Class Index ►Class Hierarchy ▼Class Members ►All ▼Functions _ a b c d e f g h i j k l m n o p q r s t u v w x y z ~ ►Variables ►Typedefs ►Enumerations ►Enumerator ►Related Functions ►Files-...
–mysql-ignore-errors=[LIST,…] list of errors to ignore, or “all” [1213,1020,1205] #要忽略或“全部”的错误列表 --mysql-dry-run[=on|off] Dry run, pretend that all MySQL client API calls are successful without executing them [off] #模拟运行,假设所有的MySQL客户端API调用都是成功的,...
当遇到数据库重复数据,就要将数据进行分组,取其中一条来展示,此时就要用到group by语句。 但当mysql的版本高于5.7时,在执行group by时,select的字段不属于group by的字段的话,就会报错。报错信息如下: 1055- Expression #1of SELECT list is notinGROUP BY clause and contains nonaggregated column ‘数据库名.表...
{ ulint i; ulint n_recs; byte *slot; n_recs = page_get_n_recs(page); if (UNIV_UNLIKELY(n_recs > n_dense)) { page_zip_fail( ("page_zip_dir_decode 1: %lu > %lu\n", (ulong)n_recs, (ulong)n_dense)); return (FALSE); } /* Traverse the list of stored records in the...
setup_tables:Set up table leaves in the query block based on list of tables. resolve_placeholder_tables/merge_derived/setup_table_function/setup_materialized_derived:Resolve derived table, view or table function references in query block. setup_natural_join_row_types:Compute and store the row ty...
将derived table中的列或者表的重命名合并到父查询(fix_tables_after_pullout()/repoint_contexts_of_join_nests()) 因为已经把derived table中包含的表merge到了父查询,所以需要对TABLE_LIST中的表所在的位置进行重新定位(remap_tables()) 将derived table合并到父查询之后,需要重新修改原来derived table中所有对de...
For more information, type 'help', whereis one of the following categories: Account Management Administration Data Definition Data Manipulation Data Types Functions Functions and Modifiers for Use with GROUP BY Geographic Features Language Structure ...
If the incompatible changes do have an impact for you, you can set the new system variable terminology_use_previous to BEFORE_8_0_26 to make MySQL Server use the old versions of the names for the objects specified in the previous list. This enables monitoring tools that rely on the old ...