Question

当我插入数据库时，我希望相同的“标题”同时出现。

我使用Python作为一种编程语言，并使用Microsoft SQL Server作为数据库。

下面我举一个例子。

这就是我所拥有的：

A B C A B C A B C 
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9

这就是我想要的：

这是我使用的代码：

 cursor = get_sql_conn().cursor()
    localFile = 'C:\\Users\\dersimw\\Source\Repos\\nordpoolAnalyse\\data\\2011-3.xlsx'
    excelFile = pd.ExcelFile(localFile)
    sheetsList = []
    rowsID = []

    for allTheSheets in range(1,32):
        convertingToChar = '%02d' % allTheSheets
        sheetsList.append(str(convertingToChar))

    for sheets in sheetsList:
        df = excelFile.parse(sheets, skiprows=35)
        df.dropna(axis=1, how='all', inplace = True)
        df.fillna(0, inplace = True)

        selectedColumns = df.iloc[: , [0,1,2,3,4]]
        transposeColumns = selectedColumns.transpose()
        print(transposeColumns)

    for key, rows in transposeColumns.items():
       # print("## Column: ", key, "\n")
        columnInsertSql = "INSERT INTO DataSetValues (BuyAmount, BuyAggregated, BuyPrice, SellAmount, SellAggregated, SellPrice) VALUES("
        columnCounter = 1
        columnHasData = False

        for key, column in rows.items():
            if isinstance(column, int) or isinstance(column, float):
                columnHasData = True
                columnInsertSql += str(column)

                if columnCounter != len(list(rows.items())):
                    columnInsertSql += ", "
                    columnCounter += 1

        columnInsertSql += ")"
        if columnHasData == True:
            cursor.execute(columnInsertSql)
            print("## SQL: " + columnInsertSql)
            cursor.commit()

Answer 1

这可能不是理想的解决方案，但可以按预期工作：

import pandas as pd
import numpy as np
# create dummy dataframe reppresting what you get from your SQL:
head = ['A','B','C']*3
rows = [[i for i in range(1,10)] for i in range(0,3)]
# put it in a pandas dataframe
df = pd.DataFrame(rows, columns=head)
my_dic = {}
for name, group in df.transpose().groupby(level=0):
    my_dic[name] = group.values.reshape(np.size(group.values))

new_df = pd.DataFrame(my_dic)

输出：

如何在Python中将相同的“标头”排序到Sql Server？

1 个答案: