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问题描述
我有一个python文件，该文件创建并填充ms sql中的表.唯一的问题是，如果有任何非ASCII字符或单撇号(每个都有很多)，代码就会中断.尽管我可以运行replace函数来消除撇号字符串，但我还是希望它们保持完整.我也尝试过将数据转换为utf-8，但也没有运气.
I have a python file that creates and populates a table in ms sql. The only sticking point is that the code breaks if there are any non-ascii characters or single apostrophes (and there are quite a few of each). Although I can run the replace function to rid the strings of apostrophes, I would prefer to keep them intact. I have also tried converting the data into utf-8, but no luck there either.
以下是我收到的错误消息:
Below are th error messages I get:
"'ascii' codec can't encode character u'\2013' in position..." (for non-ascii characters)
以及单引号
class 'pyodbc.ProgrammingError'>: ('42000', "[42000] [Microsoft][ODBC SQL Server Driver][SQL Server] Incorrect syntax near 'S, 230 X 90M.; Eligibilty....
当我尝试在utf-8中编码字符串时，我却收到以下错误消息:
When I try to encode string in utf-8, I instead get the following error message:
<type 'exceptions.UnicodeDecodeError'>: ascii' codec can't decode byte 0xe2 in position 219: ordinal not in range(128)
以下包含python代码.我相信代码中发生此中断的地方是在以下行之后:InsertValue = str(row.GetValue(CurrentField ['Name'])).
The python code is included below. I believe the point in the code where this break occurs is after the following line: InsertValue = str(row.GetValue(CurrentField['Name'])).
# -*- coding: utf-8 -*-
import pyodbc
import sys
import arcpy
import arcgisscripting
gp = arcgisscripting.create(9.3)
SQL_KEYWORDS = ['PERCENT', 'SELECT', 'INSERT', 'DROP', 'TABLE']
#SourceFGDB = '###'
#SourceTable = '###'
SourceTable = sys.argv[1]
TempInputName = sys.argv[2]
SourceTable2 = sys.argv[3]
#---------------------------------------------------------------------------------------------------------------------
# Target Database Settings
#---------------------------------------------------------------------------------------------------------------------
TargetDatabaseDriver = "{SQL Server}"
TargetDatabaseServer = "###"
TargetDatabaseName = "###"
TargetDatabaseUser = "###"
TargetDatabasePassword = "###"
# Get schema from FGDB table.
# This should be an ordered list of dictionary elements [{'FGDB_Name', 'FGDB_Alias', 'FGDB_Type', FGDB_Width, FGDB_Precision, FGDB_Scale}, {}]
if not gp.Exists(SourceTable):
print ('- The source does not exist.')
sys.exit(102)
#### Should see if it is actually a table type. Could be a Feature Data Set or something...
print(' - Processing Items From : ' + SourceTable)
FieldList = []
Field_List = gp.ListFields(SourceTable)
print(' - Getting number of rows.')
result = gp.GetCount_management(SourceTable)
Number_of_Features = gp.GetCount_management(SourceTable)
print(' - Number of Rows: ' + str(Number_of_Features))
print(' - Getting fields.')
Field_List1 = gp.ListFields(SourceTable, 'Layer')
Field_List2 = gp.ListFields(SourceTable, 'Comments')
Field_List3 = gp.ListFields(SourceTable, 'Category')
Field_List4 = gp.ListFields(SourceTable, 'State')
Field_List5 = gp.ListFields(SourceTable, 'Label')
Field_List6 = gp.ListFields(SourceTable, 'DateUpdate')
Field_List7 = gp.ListFields(SourceTable, 'OBJECTID')
for Current_Field in Field_List1 + Field_List2 + Field_List3 + Field_List4 + Field_List5 + Field_List6 + Field_List7:
print(' - Field Found: ' + Current_Field.Name)
if Current_Field.AliasName in SQL_KEYWORDS:
Target_Name = Current_Field.Name + '_'
else:
Target_Name = Current_Field.Name
print(' - Alias : ' + Current_Field.AliasName)
print(' - Type : ' + Current_Field.Type)
print(' - Length : ' + str(Current_Field.Length))
print(' - Scale : ' + str(Current_Field.Scale))
print(' - Precision: ' + str(Current_Field.Precision))
FieldList.append({'Name': Current_Field.Name, 'AliasName': Current_Field.AliasName, 'Type': Current_Field.Type, 'Length': Current_Field.Length, 'Scale': Current_Field.Scale, 'Precision': Current_Field.Precision, 'Unique': 'UNIQUE', 'Target_Name': Target_Name})
# Create table in SQL Server based on FGDB table schema.
cnxn = pyodbc.connect(r'DRIVER={SQL Server};SERVER=###;DATABASE=###;UID=sql_webenvas;PWD=###')
cursor = cnxn .cursor()
#### DROP the table first?
try:
DropTableSQL = 'DROP TABLE dbo.' + TempInputName + '_Test;'
print DropTableSQL
cursor.execute(DropTableSQL)
dbconnection.commit()
except:
print('WARNING: Can not drop table - may not exist: ' + TempInputName + '_Test')
CreateTableSQL = ('CREATE TABLE ' + TempInputName + '_Test '
' (Layer varchar(500), Comments varchar(5000), State int, Label varchar(500), DateUpdate DATETIME, Category varchar(50), OBJECTID int)')
cursor.execute(CreateTableSQL)
cnxn.commit()
# Cursor through each row in the FGDB table, get values, and insert into the SQL Server Table.
# We got Number_of_Features earlier, just use that.
Number_Processed = 0
print(' - Processing ' + str(Number_of_Features) + ' features.')
rows = gp.SearchCursor(SourceTable)
row = rows.Next()
while row:
if Number_Processed % 10000 == 0:
print(' - Processed ' + str(Number_Processed) + ' of ' + str(Number_of_Features))
InsertSQLFields = 'INSERT INTO ' + TempInputName + '_Test ('
InsertSQLValues = 'VALUES ('
for CurrentField in FieldList:
InsertSQLFields = InsertSQLFields + CurrentField['Target_Name'] + ', '
InsertValue = str(row.GetValue(CurrentField['Name']))
if InsertValue in ['None']:
InsertValue = 'NULL'
# Use an escape quote for the SQL.
InsertValue = InsertValue.replace("'","' '")
if CurrentField['Type'].upper() in ['STRING', 'CHAR', 'TEXT']:
if InsertValue == 'NULL':
InsertSQLValues = InsertSQLValues + "NULL, "
else:
InsertSQLValues = InsertSQLValues + "'" + InsertValue + "', "
elif CurrentField['Type'].upper() in ['GEOMETRY']:
## We're not handling geometry transfers at this time.
if InsertValue == 'NULL':
InsertSQLValues = InsertSQLValues + '0' + ', '
else:
InsertSQLValues = InsertSQLValues + '1' + ', '
else:
InsertSQLValues = InsertSQLValues + InsertValue + ', '
InsertSQLFields = InsertSQLFields[:-2] + ')'
InsertSQLValues = InsertSQLValues[:-2] + ')'
InsertSQL = InsertSQLFields + ' ' + InsertSQLValues
## print InsertSQL
cursor.execute(InsertSQL)
cnxn.commit()
Number_Processed = Number_Processed + 1
row = rows.Next()
print(' - Processed all ' + str(Number_Processed))
del row
del rows
推荐答案
James，我认为真正的问题是您没有使用Unicode.尝试执行以下操作:
James, I believe the real issue is that your are not using Unicode accross the board. Try to do the following:
- 确保用于填充数据库的输入文件位于UTF-8中，并且正在使用UTF-8编码器进行读取.
- 确保您的数据库实际将数据存储为Unicode
- 当您从文件或数据库中检索数据或要操纵字符串(例如，使用+运算符)时，您需要确保所有部分都是正确的Unicode.您不能使用str()方法.正如戴夫指出的那样，您需要使用unicode().如果您在代码中定义字符串，请使用我的字符串"而不是我的字符串"(否则将不被视为unicode).
另外，请向我们提供完整的堆栈跟踪和异常名称.
Also, please provide us the full stack trace and the exception name.
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