Python SQLite3:“&引用；sqlite3.OperationalError:没有这样的列：dateandtime“&引用；当制作主键时？

我目前正在尝试使用SQLlite3和Python创建一个数据库，但是在设置主键时遇到了问题。我知道它是什么，以及它如何唯一地标识表，但我想将它从它附带的标准“rowid”更改为当前日期。当我尝试向表中添加内容时，结果是：

File "Economic_Analyser.py", line 258, in <module>
    startup()
  File "Economic_Analyser.py", line 243, in startup
    c.execute("INSERT INTO economicdata VALUES (dateandtime, up_GDPgrowthRate, up_GDP, up_GNP, up_GDPperCapita, up_GDPagriculture, up_GDPconstruction, up_GDPmanufacturing, up_GDPmining, up_GDPpublicadmin, up_GDPservices, up_GDPtransport, up_GDPtourism, up_UnemploymentRate, up_EmploymentRate, up_InflationRate, up_CPI, up_InterestRate, up_BalanceOfTrade, up_CurrentAccount, up_Imports, up_Exports, up_FDI, up_GovernmentSpending, up_GovernmentDebt, up_BusinessConfidence, up_Bankruptcies, up_CompetitiveRank, up_CorruptionRank, up_ConsumerConfidence, up_CorporateTaxRate, up_IncomeTaxRate)")
sqlite3.OperationalError: no such column: dateandtime

---

在INSERT语句中，列名放错了位置。它们应该紧跟在括号/括号中的表名之后，然后需要为每个要插入的值设置占位符

相反，您可以这样做：

columns = ['dateandtime',
 'up_GDPgrowthRate',
 'up_GDP',
 'up_GNP',
 'up_GDPperCapita',
 'up_GDPagriculture',
 'up_GDPconstruction',
 'up_GDPmanufacturing',
 'up_GDPmining',
 'up_GDPpublicadmin',
 'up_GDPservices',
 'up_GDPtransport',
 'up_GDPtourism',
 'up_UnemploymentRate',
 'up_EmploymentRate',
 'up_InflationRate',
 'up_CPI',
 'up_InterestRate',
 'up_BalanceOfTrade',
 'up_CurrentAccount',
 'up_Imports',
 'up_Exports',
 'up_FDI',
 'up_GovernmentSpending',
 'up_GovernmentDebt',
 'up_BusinessConfidence',
 'up_Bankruptcies',
 'up_CompetitiveRank',
 'up_CorruptionRank',
 'up_ConsumerConfidence',
 'up_CorporateTaxRate',
 'up_IncomeTaxRate']
placeholders = ",".join('?'*len(columns))
insert_stmt = f"""INSERT INTO economicdata ({columns}) 
                     VALUES ({placeholders});"""
c.execute(insert_stmt)

---

现在，当我复制您的代码时，出现了这个错误：``文件“Economic_analyzer.py”，第293行，在startup（）文件“Economic_analyzer.py”中，第275行，在startup placeholders=“，”。join（'？'*列）TypeError:不能用'list'类型的非int乘以sequence？“我很感激你的帮助。”“忘却现实：我的道歉。”。行中缺少一部分：

占位符=…

。我已经编辑了答案来修复它。

columns = ['dateandtime',
 'up_GDPgrowthRate',
 'up_GDP',
 'up_GNP',
 'up_GDPperCapita',
 'up_GDPagriculture',
 'up_GDPconstruction',
 'up_GDPmanufacturing',
 'up_GDPmining',
 'up_GDPpublicadmin',
 'up_GDPservices',
 'up_GDPtransport',
 'up_GDPtourism',
 'up_UnemploymentRate',
 'up_EmploymentRate',
 'up_InflationRate',
 'up_CPI',
 'up_InterestRate',
 'up_BalanceOfTrade',
 'up_CurrentAccount',
 'up_Imports',
 'up_Exports',
 'up_FDI',
 'up_GovernmentSpending',
 'up_GovernmentDebt',
 'up_BusinessConfidence',
 'up_Bankruptcies',
 'up_CompetitiveRank',
 'up_CorruptionRank',
 'up_ConsumerConfidence',
 'up_CorporateTaxRate',
 'up_IncomeTaxRate']
placeholders = ",".join('?'*len(columns))
insert_stmt = f"""INSERT INTO economicdata ({columns}) 
                     VALUES ({placeholders});"""
c.execute(insert_stmt)