我使用的是带有SQL Server2012服务器的PDW AU5。我有一个空的复制表,我正试图将数据加载到其中。我只加载了2条记录。所以,我要做的是:
INSERT INTO dbo.some_table
(Col1, Col2, Col3)
VALUES
(1, 'x', 'a'),
(2, 'y', 'b')
从在线书籍上看,这应该是可行的。(它适用于SMP。)然而,PDW抛出了一个错误,声明:Parse error at line: 4, column: x: Incorrect syntax near ','.
此错误所指的逗号是第一个元组之后的逗号。我做错了什么?在AU5上不允许通过INSERT INTO插入多行吗?
发布于 2016-03-22 04:42:41
关于MSDN for INSERT INTO
的文档指出,与正常的SQL Server相比,并行数据仓库和Azure SQL数据仓库使用了不同的插入语法,而正常的SQL Server不幸的是不支持多个VALUES
元组:https://msdn.microsoft.com/en-us/library/ms174335.aspx
-- Azure SQL Data Warehouse and Parallel Data Warehouse
INSERT INTO [ database_name . [ schema_name ] . | schema_name . ] table_name
[ ( column_name [ ,...n ] ) ]
{
VALUES ( { NULL | expression } [ ,...n ] )
| SELECT <select_criteria>
}
[ OPTION ( <query_option> [ ,...n ] ) ]
[;]
但是请注意,它确实支持INSERT INTO [...] SELECT [..]
语法,所以您可以像这样破解它:
INSERT INTO foo ( x, y, z )
SELECT 1, 'x', 'a' UNION ALL
SELECT 2, 'y', 'b' UNION ALL
SELECT 3, 'z', 'c' UNION ALL
SELECT 4, 'a', 'd' UNION ALL
SELECT 5, 'b', 'e'
(最后一行没有UNION ALL
表达式)
发布于 2021-08-05 06:56:52
使用INSERT INTO和SELECT:如果要插入的行数非常多,它可能会失败,并显示错误:
Msg 102042, Level 16, State 1, Line 1
The query processor ran out of stack space during query optimization. Please simplify the query.
我发现的唯一替代方法是单独插入每一行,如下所示:
create table #A (ID integer, CollA varchar(10), CollB Varchar(50))
Insert into #A values (2176035,'ADM1','DIFFERENT TO OPS1 APP')
Insert into #A values (5530921,'ADM7','DIFFERENT TO OPS1 APP')
Insert into #A values (5034949,'ADM7','DIFFERENT TO OPS1 APP')
Insert into #A values (3780563,'ADM4','DIFFERENT TO OPS1 APP')
Insert into #A values (5215169,'ADM2','DIFFERENT TO OPS1 APP')
https://stackoverflow.com/questions/36141006
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