R ODBC - 使用空格查询列名

Question

I am trying to query through R OBDC. But one Column name has space on it. For example, [Account No] .

I am using this code to query:

esiid_ac <- sqlQuery(myconn, paste("
 SELECT * FROM CustomerUsage WHERE ((CustomerUsage.Account No ='", 12345, "')) ", sep=""),as.is=TRUE)

I am getting the following error:

[1] "42000 102 [Microsoft][ODBC Driver 11 for SQL Server][SQL Server]Incorrect syntax near 'No'." [2] "[RODBC] ERROR: Could not SQLExecDirect '\\n SELECT * FROM CustomerUsage WHERE ((CustomerUsage.Account No ='678987')) '

How to solve this?

Can I read this table with column index instead of column names?

Thank you.

Answer 1

在稍微修改一下引号之后，这对我有用：

df <- sqlQuery(myconn, 'SELECT * FROM mytable WHERE "column name" =123', as.is=TRUE)

Answer 2

你试过方括号吗（当列名中有特殊字符时，它们适用于我）？

esiid_ac <- sqlQuery(myconn, paste(" SELECT * FROM CustomerUsage WHERE ((CustomerUsage.[Account No] ='", 12345, "')) ", sep=""),as.is=TRUE)

Answer 3

You can use \\"COL_NAME\\" instead of COL_NAME and use that as you would always use it. For example:

esiid_ac <- sqlQuery(myconn, "SELECT * FROM CustomerUsage WHERE \"Account No\" = 12345")

Answer 4

您可以尝试将列名称设置为[帐户号]然后尝试吗？

Answer 5

你可以试试...

df <- sqlQuery(myconn, "SELECT * FROM mytab WHERE `crazy column name` =123", as.is=TRUE)