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If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...
上述代码首先创建了一个名为temp_table的临时表,然后向表中插入了三行数据。接下来,通过SELECT语句查询了临时表中的数据,并可以选择使用DROP TABLE语句删除临时表。 总结 在Hive中,使用CREATE TEMPORARY TABLE语句创建临时表,并使用INSERT INTO语句向临时表中插入数据。临时表对于临时计算和中间结果非常有用,但请注意它...
create temp table aaa (c1 int) on commit drop;指定 temp table aaa 在发生commit 时(比如insert into aaa 操作)触发drop tmp table的行为 create temp table aaa (c1 int) on commit DELETE ROWS;会在提交时 删除事务内对当前temp table 的更新行,temp table本身的drop会在backend 退出时。 create temp ...
If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...
<common_table_expression>::= expression_name [ ( column_name [ ,n ] ) ] AS ( CTE_query_definition ) 1. 2. 3. 4. 5. 现在使用CTE来解决上面的问题,SQL语句如下: with cr as ( select CountryRegionCode from person.CountryRegion where Name like 'C%' ...
CREATE [ [ GLOBAL | LOCAL ] { TEMPORARY | TEMP } | UNLOGGED ] TABLE [ IF NOT EXISTS ] table_name { ({ column_name data_type [ compress_mode ] [ COLLATE collation ] [ column_constraint [ ... ] ] | table_constraint | LIKE source_table [ like_option [...] ] } [, ... ]...
若要建立所建立的暫存表格,請使用 CREATE GLOBAL TEMPORARY TABLE 陳述式。 若要宣告所宣告的暫存表格,請使用 DECLARE GLOBAL TEMPORARY TABLE 陳述式。 呼叫 此陳述式可以內嵌在應用程式中,或使用動態 SQL 陳述式發出。 它是可執行的陳述式,只有在 DYNAMICRULES 執行行為對套件有效時才能動態準備 (SQLSTATE 42509)...
Due to some complex queries from multiple databases, I need to store sql results from multipler databases into a temp table in SQL Server.I load a asp.net datable from an Oracle database SQL query reults and I want to take this datatable and create a SQL Server temp table and populate...
If a temporary table is created with a named constraint and the temporary table is created within the scope of a user-defined transaction, only one user at a time can execute the statement that creates the temp table. For example, if a stored procedure creates a temporary table with a name...