我使用Python将Excel数据导入postgreSQL并遇到编程错误。我研究了这个问题,发现它与postgreSQL有关。有人可以提供协助。
import psycopg2
import xlrd
book = xlrd.open_workbook("T:\data.xlsx")
sheet = book.sheet_by_name("HCSData")
database = psycopg2.connect (database = "", user="")
cursor = database.cursor()
delete = """Drop table if exists "Python".hcsdata"""
print (delete)
mydata = cursor.execute(delete)
cursor.execute('''CREATE TABLE "Python".hcsdata
(DCAD_Prop_ID varchar(55),
Address VARCHAR(50),
Addition VARCHAR(100),
Block text,
Lot integer,
Permit_Num varchar(55),
Permit_Date date,
Foundation_Date date,
Frame_Date date,
Final_Date date,
HCS varchar(55),
Project_ID integer
);''')
print "Table created successfully"
query = """INSERT INTO "Python".hcsdata (DCAD_Prop_ID,Address,Addition, Block, Lot,
Permit_Num,Permit_Date, Foundation_Date, Frame_Date, Final_Date, HCS,Project_ID)
VALUES (%s, %s, %s, %s, %s, %s, %s,%s, %s, %s, %s, %s)"""
for r in range(1, sheet.nrows):
DCAD_Prop_ID = sheet.cell(r,0).value
Address = sheet.cell(r,1).value
Addition = sheet.cell(r,2).value
Block = sheet.cell(r,3).value
Lot = sheet.cell(r,4).value
Permit_Num = sheet.cell(r,5).value
Permit_Date = None if not sheet.cell(r,6).value else xlrd.xldate.xldate_as_datetime(sheet.cell(r,6).value,book.datemode)
Foundation_Date = None if not sheet.cell(r,7).value else xlrd.xldate.xldate_as_datetime(sheet.cell(r,7).value,book.datemode)
Frame_Date = None if not sheet.cell(r,8).value else xlrd.xldate.xldate_as_datetime(sheet.cell(r,8).value,book.datemode)
Final_Date = None if not sheet.cell(r,9).value else xlrd.xldate.xldate_as_datetime(sheet.cell(r,9).value,book.datemode)
HCS = sheet.cell(r,10).value
Project_ID =sheet.cell(r,11).value
values = (DCAD_Prop_ID,set(Address),Addition, Block, Lot,
Permit_Num,Permit_Date, Foundation_Date, Frame_Date, Final_Date, HCS,Project_ID)
cursor.execute(query, values)
cursor.close()
database.commit()
database.close()
print ""
print "All Done! Bye, for now."
print ""
columns = str(sheet.ncols)
rows = str(sheet.nrows)
print "Done"
Python显示的错误是:
Drop table if exists "Python".hcsdata
Table created successfully
Traceback (most recent call last):
File "C:\Users\Programming\PythonSQLNew\HCSData.py", line 53, in <module>
cursor.execute(query, values)
ProgrammingError: can't adapt type 'set'
答案 0 :(得分:3)
您的查询似乎期望所有字符串:
query = """INSERT INTO "Python".hcsdata (DCAD_Prop_ID,Address,Addition, Block, Lot,
Permit_Num,Permit_Date, Foundation_Date, Frame_Date, Final_Date, HCS,Project_ID)
VALUES (%s, %s, %s, %s, %s, %s, %s,%s, %s, %s, %s, %s)"""
在你的价值观中,几乎只有字符串,但外星人才能脱颖而出:
values = (DCAD_Prop_ID,set(Address),Addition, Block, Lot,
Permit_Num,Permit_Date, Foundation_Date, Frame_Date, Final_Date, HCS,Project_ID)
我承认这个消息很神秘,但逻辑告诉我们这样做:
values = (DCAD_Prop_ID,Address,Addition, Block, Lot,
Permit_Num,Permit_Date, Foundation_Date, Frame_Date, Final_Date, HCS,Project_ID)
(因为没有必要将Address
放在set
中,它似乎是一个像其他字段一样的字符串)
答案 1 :(得分:0)
对于将来可能尝试使用的人varchar[]
或WHERE x IN %(values)s
,您需要将set
转换为tuple
。