标签：
http://stackoverflow.com/questions/21167070/how-to-query-multiple-times-and-close-the-connection-at-the-end
使用query1=dbSendQuery(db, "select * from table1")
会出现
Error in mysqlExecStatement(conn, statement, ...) : RS-DBI driver: (connection with pending rows, close resultSet before continuin
的错误，解决方案是
query1=dbGetQuery(db, "select * from table1")
Because:
The function ‘dbGetQuery’ does all these in one operation (submits the statement, fetches all output records, and clears the result set).
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原文地址：http://www.cnblogs.com/colipso/p/4863286.html
