R dbplyr SQL 错误 "expecting something between Database_Name and LIMIT"

Question

这是我们正在使用的连接：

con <- DBI::dbConnect(odbc::odbc(),
                      Driver = "[your driver's name]",
                      Host   = "[your server's path]",
                      DBCName = "[IP Address or Alias]"
                      UID    = rstudioapi::askForPassword("Database user"),
                      PWD    = rstudioapi::askForPassword("Database password"))

下面的命令在我的代码中运行良好，没有错误，并且输出看起来是正确的：

table1 <- tbl(con, "SAP_PRD_QMEL_ACQ")

但是，当我运行这行代码时，出现以下错误：

table2 <- DBI::dbGetQuery(con, "SELECT * FROM SAP_PRD_QMEL_ACQ LIMIT 5")

#> Error in new_result(connection@ptr, statement) : 
#>   nanodbc/nanodbc.cpp:1344: 42000: [Teradata][ODBC Teradata Driver]
#> [Teradata Database](-3706)Syntax error: expected something between the word 
#> 'SAP_PRD_QMEL_ACQ' and the 'LIMIT' keyword.

当我创建简单的重现来尝试复制错误时，我空手而归。为什么我会收到此 "expecting something between Database_Name and LIMIT" 错误？

Answer 1

无法重现您的问题，但我相信您需要使用 TOP 而不是 LIMIT:

table2 <- DBI::dbGetQuery(con, "SELECT TOP 5 * FROM SAP_PRD_QMEL_ACQ")

R dbplyr SQL 错误 "expecting something between Database_Name and LIMIT"

R dbplyr SQL Error "expecting something between Database_Name and LIMIT"

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