The SQL query below shows a list of tables sorted by the largest tables first. For each table, the indexes in the table are shown. For each index it shows when the index was last used. The query is designed to collect various pieces of information in one place, and give...
DMLQueryReturnsOutputToClient DML 查询将输出返回到客户端,并且不可并行化。 MixedSerialAndParallelOnlineIndexBuildNotSupported 单个联机索引生成的串行和并行计划组合不受支持。 CouldNotGenerateValidParallelPlan 验证并行计划失败,故障回复到串行计划。 NoParallelForMemoryOptimizedTables 引用的内存中 OLTP 表不支持并行...
[i].StrLen_or_Ind)); // all catalogs query printf( "A list of names of all catalogs\n" ); retCode = SQLTables( hstmt, (SQLCHAR*)SQL_ALL_CATALOGS, SQL_NTS, (SQLCHAR*)"", SQL_NTS, (SQLCHAR*)"", SQL_NTS, (SQLCHAR*)"", SQL_NTS ); for ( retCode = SQLFetch(hstmt) ; ...
You can query the SYSOBJECTS view to find all of the tables in the database. This shows all objects, so to filter it to tables we can filter on the xtype column equals the value of “U”, which represents a user table. Here’s the query: SELECT*FROMsysobjectsWHERExtype='U'ORDERBYn...
SQLTablesreturns the list of table, catalog, or schema names, and table types, stored in a specific data source. The driver returns the information as a result set. Syntax C++Copy SQLRETURNSQLTables( SQLHSTMT StatementHandle, SQLCHAR * CatalogName, SQLSMALLINT NameLength1, SQLCHAR * Schema...
Created_tmp_disk_tables:创建内部磁盘临时表的数量; Created_tmp_tables:创建内部临时表的数量; Start/End:语句开始和结束时间 Tips:在MariaDB中,可以开启log_slow_verbosity参数,可以更加详尽的打印出慢SQL的执行细节,该参数在MySQL8.0版本中并未支持,读者感兴趣可以自行查阅相关信息。
2 - Check whether you consider all the tables. 3 - Output a list object in the order of step 2, Your output should contain all the tables. The format should be like: ["table_1", "table_2", ...] """ 表字段召回: 在得到问题相关的数据表之后,会继续执行表字段召回的操作,同样使用了...
; mysql > DESC information_schema.TABLES; TABLE_SCHEMA 表所在的库名 TABLE_NAME 表名 ENGINE 存储引擎 TABLE_ROWS 表的行数(粗略统计) AVG_ROW_LENGTH 表中平均行长度(字节)(粗略统计) INDEX_LENGTH 索引长度(字节)(粗略统计) DATA_FREE 碎片数量 TABLE_COMMENT 表注释 mysql> DESC COLUMNS; TABLE_SCHEMA...
hive模糊搜索表:show tables like '*name*'; 查看表结构信息:desc table_name; 查看分区信息:show partitions table_name; 加载本地文件:load data local inpath '/xxx/test.txt' overwrite into table dm.table_name; 从查询语句给table插入数据:insert overwrite table table_name partition(dt) select * from...
display the list of tables in a mysql database Displaying a 3D model in C# Displaying Console Application Version Number Displaying TimeSpan value in datetime picker using the Value property Displaying Version Number C# Dispose a string? Dispose objects in C# Disposing singleton class Dividing smaller...