SQL_SQ_INSQL_SQ_QUANTIFIEDSQL_SQ_CORRELATED_SUBQUERIES位掩码指示支持子查询的所有谓词都支持关联的子查询。SQL-92 入口级别一致性驱动程序将始终返回在其中设置所有这些位的位掩码。 SQL_SYSTEM_FUNCTIONS 1.0 一个SQLUINTEGER 位掩码,用于枚举驱动程序和关联的数据源支持的标量系统函数。以下位掩码用于确定支持哪些...
SQL_SQ_INSQL_SQ_QUANTIFIEDSQL_SQ_CORRELATED_SUBQUERIES位掩碼表示支援子查詢的所有述詞都支援相互關聯的子查詢。SQL-92 入門層級一致性驅動程式一律會傳回位掩碼,其中已設定所有這些位。 SQL_SYSTEM_FUNCTIONS 1.0 SQLUINTEGER 位掩碼,列舉驅動程式和相關聯數據源所支援的純量系統函式。下列位掩碼可用來判斷支援...
Query expressions in ArcGIS use common SQL syntax. Caution: SQL syntax does not work for calculating fields using Field Calculator. Fields To specify a field in an SQL expression, provide a delimiter if the field name would otherwise be ambiguous, such as if it were the sam...
-- note we're using a hard-coded date rather than -- a function such as "now()" because the query will -- run at slightly different times on each replica SELECT run_command_on_placements( 'my_distributed_table', $cmd$ UPDATE %s SET updated_at = '2017-01-01'; $cmd$ ); run_...
Operators describe how SQL Server executes a query or a Data Manipulation Language (DML) statement. The query optimizer uses operators to build a query plan to create the result specified in the query, or to perform the operation specified in the DML statement. The query plan is a tree consi...
7.6.4.3.2 Rewriter Query Rewrite Plugin Procedures and Functions Rewriterplugin operation uses a stored procedure that loads the rules table into its in-memory cache, and a helper loadable function. Under normal operation, users invoke only the stored procedure. The function is intended to be invo...
Applies to: SQL Server SSIS Integration Runtime in Azure Data FactoryThe following tables list predefined Integration Services errors, warnings, and informational messages, in ascending numerical order within each category, along with their numeric codes and symbolic names. Each of these errors i...
For more information, see Examining Aurora PostgreSQL query plans in the dba_plans view. apg_plan_mgmt.explain_hashes Specifies if the EXPLAIN [ANALYZE] shows sql_hash and plan_hash at the end of its output. Changing the value of this parameter doesn't require a reboot. DefaultAllowed ...
mysql_data_seek()Seek to arbitrary row number in query result set mysql_debug()PerformDBUG_PUSHwith given string mysql_drop_db()Drop databaseYes mysql_dump_debug_info()Cause server to write debug information to error log mysql_eof()Determine whether last row of result set has been readYes...
Currently, ordering the queryset has no effect. Example: >>> qs = City.objects.filter(name__in=('Houston', 'Dallas')).aggregate(MakeLine('poly')) >>> print(qs['poly__makeline']) LINESTRING (-95.3631510000000020 29.7633739999999989, -96.8016109999999941 32.7820570000000018) Union¶ class ...