Question

此错误是什么意思？

Closing open result set, pending rowsError in result_create(conn@ptr, statement) : near "(": syntax error

当我想运行代码时出现

    ```{r}
    library(sqldf)
    first <- dbConnect(SQLite(), dbname= "DATA.sqlite")

    dbSendQuery(conn =  first,
                "CREATE TABLE COMPANY_MASTER
                ( 
    CompId INTEGER,
    CompName TEXT,
    Address TEXT,
    DirectorName TEXT,
    EmployeeNo INTEGER,
    PRIMARY KEY(CompName)
                )")
    dbSendQuery(conn = first, "INSERT INTO COMPANY_MASTER
                VALUES(1001,'Infosys','ABC1927','Dr.Sandeep',128)")
    dbSendQuery(conn = first, "INSERT INTO COMPANY_MASTER
                VALUES(1002,'Cognizant','ERT654','Michael',156)")
    dbSendQuery(conn = first, "INSERT INTO COMPANY_MASTER
                VALUES(1003,'Tata','PCD531','Sancheti',113)")
    *

dbSendQuery(conn =  first,
                "CREATE TABLE INCOME
                ( 
    CompName TEXT,
    In(2016) INTEGER,
    In(2017) INTEGER,
    In(2018) INTEGER,
    FOREIGN KEY(CompName)

*
                )")
    dbSendQuery(conn = first, "INSERT INTO INCOME
                VALUES('518361','528464','538646')")
    dbSendQuery(conn = first, "INSERT INTO INCOME
                VALUES('218434','205314','225815')")
    dbSendQuery(conn = first, "INSERT INTO INCOME
                VALUES('1038434','1184344','128434')")
    CompMAst <- dbGetQuery(conn = first, "SELECT * FROM COMPANY_MASTER")
    Income <- dbGetQuery(conn = first, "SELECT * FROM INCOME")
    ```

在

中给出上述错误时

dbSendQuery(conn =  first,
            "CREATE TABLE INCOME
            ( 
CompName TEXT,
In(2016) INTEGER,
In(2017) INTEGER,
In(2018) INTEGER,
FOREIGN KEY(CompName)
            )")

代码的

区域。这个错误是什么意思？是否存在某些特定的格式错误？还是我错过了执行之前必须提到的一些块。还是涉及其他软件包，请帮助。

Answer 1

根据@SatZ和您给出四列并输入三个值的错误，您的理想代码应该是

```{r}
library(sqldf)
first <- dbConnect(SQLite(), dbname= "DATA.sqlite")

dbSendQuery(conn =  first,
            "CREATE TABLE COMPANY_MASTER
            ( 
CompId INTEGER,
CompName TEXT,
Address TEXT,
DirectorName TEXT,
EmployeeNo INTEGER,
PRIMARY KEY(CompName)
            )")
dbSendQuery(conn = first, "INSERT INTO COMPANY_MASTER
            VALUES(1001,'Infosys','ABC1927','Dr.Sandeep',128)")
dbSendQuery(conn = first, "INSERT INTO COMPANY_MASTER
            VALUES(1002,'Cognizant','ERT654','Michael',156)")
dbSendQuery(conn = first, "INSERT INTO COMPANY_MASTER
            VALUES(1003,'Tata','PCD531','Sancheti',113)")
dbSendQuery(conn =  first,
            "CREATE TABLE INCOME
            ( 
CompName TEXT,
IN_2016 TEXT,
IN_2017 TEXT,
IN_2018 TEXT)")
dbSendQuery(conn = first, "INSERT INTO INCOME
            VALUES('Infosys','5183.61','5284.64','5386.46')")
dbSendQuery(conn = first, "INSERT INTO INCOME
            VALUES('Cognizant','2184.34','2053.14','2258.15')")
dbSendQuery(conn = first, "INSERT INTO INCOME
            VALUES('Tata','10384.34','11843.44','1284.34')")
CompMAst <- dbGetQuery(conn = first, "SELECT * FROM COMPANY_MASTER")
Income <- dbGetQuery(conn = first, "SELECT * FROM INCOME")
```

Answer 2

<form class="checkout"> <div class="col-1"></div> <h3>Overview</h3> <div class="col-2"></div> </form>方法返回一个dbSendQuery()对象，使用"DBIResult"清除它是调用者的责任。对于不返回结果集的查询，请使用dbClearResult()而不是dbExecute()以避免警告。（{dbSendQuery()与dbExecute()等效，对于不返回结果集的查询。）

有关较长格式dbGetQuery() + dbBind() + dbSendQuery()的用例，请参见dbFetch()的帮助。

sqldf程序包中的未知错误

2 个答案: