Question

我必须检查数据库中是否有null，我需要检查11列（or）和加号，以及年份（例如2017%）。

def test():
    sql= "select date from a000760 where (total_assets is null or total_liabilities is null or sales_figures is null or sales_cost is null or business_profits is null or gross_margin is null or current_income is null or depreciation_expense_of_tangible_assets is null or liquid_asset is null or noncurrent_asset is null or liquid_liability is null) and (date like '2010%')"
    curs.execute(sql)
    #year="2010"
    #curs.execute("select date from a000760 where (total_assets is null or total_liabilities is null or sales_figures is null or sales_cost is null or business_profits is null or gross_margin is null or current_income is null or depreciation_expense_of_tangible_assets is null or liquid_asset is null or noncurrent_asset is null or liquid_liability is null) and (date like %s)",year)
    result = curs.fetchall()
    if len(result)>0: // print shows () even if it's none. so, I use this
        print "a000760"
        print "2010 null exists"

这是一个表的测试版本。我必须检查超过2000个表。它适用于此def并显示错误（仅适用于一个表）。但它不适用于总表。我收到了这个错误：

Warning: (1292, "Incorrect date value: '2010%' for column 'date' at row 1")

我不知道怎么样...... 我搜索了整个语法，但是当我输入%2017%时，它不起作用。

Answer 1

不要将like与日期一起使用！日期不是字符串。

你可以这样做：

year(date) = 2010

或者：

date >= '2010-01-01' and date < '2011-01-01'

当我在python中使用mysql时，警告1292

1 个答案: