Question

我正在尝试获取有关我的数据库的一些统计信息，我的代码似乎工作得很完美，但是我得到了一个真正的大数据库，并且在尝试运行此脚本之后，我最终总是遇到Timeout失败，没有＆＃39;无论我是否删除了一些不必要的行，我仍然得到相同的错误，脚本如下：

let
Source = Sql.Database("DBTEST","DB_TST",[CreateNavigationProperties=false]),
#"Filtered Rows" = Table.SelectRows(Source , each ([Kind] = "Table")),
#"Added Custom" = Table.AddColumn( #"Filtered Rows", "Profile",
each Table.Profile([Data])),

#"Expanded Profile" = Table.ExpandTableColumn( #"Added Custom" ,
"Profile",
{"Column", "Min", "Max", "Average", "StandardDeviation", "Count", 
"NullCount", "DistinctCount"},
{"Column", "Min", "Max", "Average", "StandardDeviation", "Count", 
"NullCount", "DistinctCount"})
in
#"Expanded Profile",
#"Entfernte Spalten" = Table.RemoveColumns(Tables_profile,{"Data"}),
#"Gefilterte Zeilen" = Table.SelectRows(#"Entfernte Spalten", each true)
in
#"Gefilterte Zeilen"

Answer 1

我是这样做的。

Sql.Database("Server", "Database", "[Query=" Select * From...", CommandTimeout=#duration(0, 5, 0, 0)])

在Power Query M中优化查询

1 个答案: