For more information, see WITH common_table_expression. NO_PERFORMANCE_SPOOL Applies to: SQL Server (starting with SQL Server 2016 (13.x)) and Azure SQL Database. Prevents a spool operator from being added to query plans (ex...
"operationId": "ExecutePassThroughNativeQuery" }, "parameters": { "query/query": "SELECT * from [dbo].[SampleTable] WHERE AnyId = 42", }, // .. } } } 操作ID を V2 操作 ID に相当するもので更新し、上記のように default 値を使用してサーバーとデータベースのパラメーターを...
sql index diagnoser全表扫描且无可用索引ocp.perf.sql-diag.table-scan-index-not-exists-config高该 SQL 执行涉及的部分表因无可用索引而进行了全表扫描。 建议创建合适的索引。 sql index diagnoser全表扫描但有索引未执行ocp.perf.sql-diag.table-scan-index-not-exists-config高该 SQL 执行涉及的表都有索引...
使用CREATE TABLE AS SELECT (CTAS)命令将SELECT查询的结果实体化为新表。 这有助于在模型中使用特征工程数据之前创建转换的数据集、执行聚合或预览特征工程数据。 如果您已准备好使用转换的功能训练模型,请参阅模型文档以了解有关将CREATE MODEL与TRANSFORM子句结合使用的指导。 您可以选择包含TRANSFORM子句以直接在CTAS...
{SIMPLE|FORCED} |QUERYTRACEON<integer_value>|RECOMPILE|ROBUSTPLAN|USEHINT('hint_name'[ , ...n ] ) |USEPLANN'<xml_plan>'|TABLEHINT(<exposed_object_name>[ ,<table_hint>[ [ , ] ...n ] ] ) |FORTIMESTAMPASOF'<point_in_time>'}<table_hint>::={NOEXPAND[ ,INDEX(<index_value>[...
S03MapperPageSample 3个例子,mapper中的翻页查询 S04QuerySample 9个例子,Query查询 S05QueryUpdateSample 3个例子,Query完成update操作 S06SelectSample 14个例子,SQLManager 查询API S07InsertSample 8个例子,SQLManager 插入新数据API,主键生成 S08UpdateSample 6个例子,更新数据 S09JsonMappingSample 5个例子, js...
This query creates a table that shows the subscriber’s display name, their primary extension number and the transfer string for every subscriber in the database that has their transfer rule enabled. SELECTvw_Subscriber.DisplayName, vw_CallHandler.DTMFAccessIdASExtension, vw_ContactRule.ExtensionAS'...
-- Create a sample table CREATE TABLE t_colstor ( accountkey int not null, accountdescription nvarchar (50) not null, accounttype nvarchar(50), accountCodeAlternatekey int ); -- Creating nonclustered columnstore index with COMPRESSION_DELAY. -- The...
* - TABLESAMPLE(BUCKET x OUT OF y) [REPEATABLE (z)]: Sample the table down to a 'x' divided by * 'y' fraction with seed 'z'. */ private def withSample(ctx: SampleContext, query: LogicalPlan): LogicalPlan = withOrigin(ctx) { // Create a sampled plan if we need one. def sam...
子查询(sub-query)是这种嵌套格式的: SELECT ... FROM (SELECT ... FROM <table_name> WHERE <conds>) WHERE ... 然而这样写可读性极差,可用视图(VIEW)解决,也可用 WITH ... AS ... 子句来解决。 WITH <temprary_table_name> AS (SELECT ... FROM <table_name> WHERE <conds>) ...