Question

大家好，我试图在for循环中创建一个while循环。代码将为我生成一堆SQL Drop索引语句，因此我不必键入除表名之外的任何内容。 excel文件将包含完成Drop Index语句所需的所有信息。这将节省我的打字时间。

预期输出 运行一个循环中的代码，该循环将询问我一个新的表名，然后运行代码并询问我另一个表名或完成。

以下是与

实际配合使用的代码

from openpyxl import load_workbook
wb = load_workbook(filename='UnusedIndexes.xlsx')
ws = wb['Indexes1']

ws.cell(row=2, column=2)
ws.cell(row=2, column=2).value
tablename = input("What Table Do you Want: ")

for i in range(1,200,1):
    if ws.cell(row=i, column=1).value == tablename:
        print("IF EXISTS (SELECT * FROM sys.indexes WHERE NAME = N'[", ws.cell(row = i, column = 2).value, "]')\nDROP INDEX [" + ws.cell(row = i, column = 2).value + "] ON "
                 + "[dbo].[" + tablename +  "]\nGO\n" )

以下是我尝试让while循环工作的代码。

＆＃13;

from openpyxl import load_workbook
wb = load_workbook(filename='UnusedIndexes.xlsx')
ws = wb['Indexes1']

ws.cell(row=2, column=2)
ws.cell(row=2, column=2).value
tablename = input("What Table Do you Want: ")
finished = 'n'

while finished == 'n':
    for i in range(1,200,1):
        if ws.cell(row=i, column=1).value == tablename:
            print("IF EXISTS (SELECT * FROM sys.indexes WHERE NAME = N'[", ws.cell(row = i, column = 2).value, "]')\nDROP INDEX [" + ws.cell(row = i, column = 2).value + "] ON "
                     + "[dbo].[" + tablename +  "]\nGO\n" )
        else:
            finished = input("Would you like to enter a new tablename(y/n): ")
        if finished == 'y':
            break

＆＃13;

Excel文件格式

Excel文件名：UnusedIndexes.xlsx
SheetName：Indexes1
A栏：表名
B列：IndexName

你可以在A中使用任何文本（字符串）值。只需要在For循环

中保留Print语句的功能

Answer 1

弄清楚我自己的问题。我的while循环有点傻。如果有人有兴趣，这里是完整的代码。

from openpyxl import load_workbook
wb = load_workbook(filename='UnusedIndexes.xlsx')
ws = wb['Indexes1']

ws.cell(row=2, column=2)
ws.cell(row=2, column=2).value
finished = 'y'

while finished != 'n':
    tablename = input("Enter a tablename for the indexes: ")
    print("This is the tablename: " + tablename)
    for i in range(1, 200, 1):
        if ws.cell(row=i, column=1).value == tablename:
            print("IF EXISTS (SELECT * FROM sys.indexes WHERE NAME = N'[", ws.cell(row=i, column=2).value, "]')\nDROP INDEX ["
                + ws.cell(row=i, column=2).value + "] ON " + "[dbo].[" + tablename + "]\nGO\n")
    finished = input("Would you like to do another table(y/n): ")

while循环使用嵌套for循环

1 个答案: