Question

我可以成功地将整个DataFrame插入到我的Oracle表中，但我无法弄清楚如何将单个变量插入到我的表中。我使用绑定变量和常规Python变量都失败了。

我的变量year打印出2014，在这种情况下，因为我的代码解析了我运行它的文档中的年份;并且它最终必须在100个文档上运行。

所以我的SQL语句如下：

cursor = con.cursor()
exported_data = [tuple(x) for x in df_Quota.values]
new_variable = year
sql_query = ("INSERT INTO ROUGHTABLE(species, date_posted, stock_id, pounds, money, sector_name, ask)" "VALUES (:1, :2, :3, :4, :5, 'NEFS 2', '1')")
year_command = ("INSERT INTO ROUGHTABLE(trade_year)" "VALUES (:1)")
cursor.executemany(sql_query, exported_data)
cursor.executemany(year_command, new_variable)
con.commit() 

cursor.close()
con.close()

并且失败并显示错误cx_Oracle.DatabaseError: ORA-01036: illegal variable name/number ...当我尝试时它也会失败：

year_command = ("INSERT INTO ROUGHTABLE(trade_year)" "VALUES (year)")
cursor.execute(year_command)

错误cx_Oracle.DatabaseError: ORA-00984: column not allowed here ...

所以我对如何将单个Python变量放入Oracle表格感到困惑。理想情况下，我希望将变量year的值导出到Oracle表中的列trade_year。任何帮助解决这个问题将不胜感激。

df_Quota:

   AvailableQuota DatePosted    ID LiveWeightPounds   price
0         GOM COD       5/20  1724             2328  $9,000
1        GOM HADD       5/20  1724              445  $9,000
2          GOM BB       5/20  1724             3007  $9,000
3        GREYSOLE       5/20  1724              850  $9,000
4            DABS       5/20  1724             3101  $9,000
5          GOM YT       5/20  1724             1995  $9,000
6         GBE COD       5/20  1578              538   $1.00
7           GB BB       5/20  1578             1755   $0.20
8           GB YT       5/20  1578              243   $1.00
9          SNE BB       5/20  1578              490   $0.45
10         SNE YT       5/20  1578              153   $0.50
11         GOM BB       5/20  1578             3965   $0.15
12          Whake       5/20  1578             2727   $0.20
13           POLL       5/20  1578             9227   $0.01
14            RED       5/20  1578            15060   $0.01
15        GBE COD       5/20   310              825  15,000
16        GBW COD       5/20   310             9033  15,000
17           DABS       5/20   310            12419  15,000
18          WHAKE       5/20   310             3120  15,000
19           POLL       5/20   310            65234  15,000
20            RED       5/20   310            76610  15,000
21         SNE BB       5/20   310             2121  15,000
22         GOM BB       5/20   310             7285  15,000

Answer 1

这是一个简单的例子：

import cx_Oracle
import csv,sys

dsnStr = cx_Oracle.makedsn("xxxxxxxxxxxxx", "1521", "xxxxxxxx")
con = cx_Oracle.connect(user="scott", password="tiger", dsn=dsnStr)
print "Database version " + con.version

myCur = con.cursor()
myCur.prepare( 'insert into roughtable( trade_year ) values ( :theYear )' )

myYear='2016'
myCur.execute(None, {'theYear':myYear})
con.commit()
con.close()

将Python变量插入Oracle数据库

1 个答案: