我正在尝试做here中的一些答案，但是当我设置
out.to_csv('somefile.txt', index=False, header=False, sep="\t",
quoting=csv.QUOTE_NONE)
我收到错误NameError: name 'csv' is not defined。我在这里做错了什么？
我正在运行熊猫0.24.1。
答案 0 :(得分：1)
添加名称空间DECLARE @MAIN_TABLE TABLE ([ID_1] INT, [ID_2] INT, [ABC_VAL] INT, [KLM_VAL] INT, [XYZ_VAL] INT)
insert @MAIN_TABLE values
(10,100,NULL,NULL,NULL),
(10,200,NULL,NULL,NULL),
(30,300,NULL,NULL,NULL)
DECLARE @REF_TABLE TABLE ([ID_1] INT, [ID_2] INT, [FLD_NAME] varchar(3),[FLD_VAL] INT)
insert @REF_TABLE values
(10,100,'ABC',11111),
(10,100,'XYZ',22222),
(10,100,'KLM',33333),
(20,200,'ABC',88888),
(30,300,'KLM',55555)
SELECT * FROM @MAIN_TABLE
SELECT * FROM @REF_TABLE
UPDATE MT
SET MT.ABC_VAL = B.ABC_VAL,
MT.XYZ_VAL = B.XYZ_VAL,
MT.KLM_VAL = B.KLM_VAL
FROM @MAIN_TABLE MT
INNER JOIN (
SELECT A.ID_1,A.ID_2,
SUM(A.ABC_FLD_VAL) AS [ABC_VAL],
SUM(A.XYZ_FLD_VAL) AS [XYZ_VAL],
SUM(A.KLM_FLD_VAL) AS [KLM_VAL]
FROM (
SELECT DISTINCT MT.ID_1,MT.ID_2,
CASE WHEN rt.FLD_NAME = 'ABC' THEN FLD_VAL ELSE NULL END 'ABC_FLD_VAL',
CASE WHEN rt.FLD_NAME = 'XYZ' THEN FLD_VAL ELSE NULL END 'XYZ_FLD_VAL',
CASE WHEN rt.FLD_NAME = 'KLM' THEN FLD_VAL ELSE NULL END 'KLM_FLD_VAL'
FROM @MAIN_TABLE MT
INNER JOIN @REF_TABLE RT ON RT.ID_1 = MT.ID_1 AND RT.ID_2 = MT.ID_2
) A
GROUP BY A.ID_1,A.ID_2
) B
ON MT.ID_1 = B.ID_1
AND MT.ID_2 = B.ID_2
SELECT * FROM @MAIN_TABLE
：
csv或设置值import csv
out.to_csv('somefile.txt', index=False, header=False, sep="\t",
quoting=csv.QUOTE_NONE)
，数字来自docs：
引用：int或csv.QUOTE_ *实例，默认为0
每个csv.QUOTE_ *常量的控制字段引用行为。使用QUOTE_MINIMAL（0），QUOTE_ALL（1），QUOTE_NONNUMERIC（2）或 QUOTE_NONE （ 3 ）之一。
3