Question

程序中有一个数据库锁，我该如何解决？

插入产品位工作正常，只是类别位告诉我数据库已锁定且不起作用：

<html>
    <style>
    </style>
    <body>
        <?php

$v_company= array(
    'ABC'=>
        array('Kuching'=>array('Michael', 'Jenny'), 
             'Sibu'=>array('Sally', 'Muhammad', 'Mutu')
                ),
    'XYZ'=>array('Kuching'=>array('Lucy', 'Abdullah'), 
                'Sibu'=>array('John', 'Alicia')
    )
);





?>
<table>

<tr><th>Company's Name</th>
    <th>Branch</th>
    <th>Staff's Name</th>
</tr>
<?php
$company = '';
$branch = '';
$staff = '';
foreach($v_company as $v_company_name=>$v_company_info){
    foreach($v_company_info as $v_branch=>$v_staffs){
        foreach($v_staffs as $v_staff){
              echo "<tr>";
                  echo "<td>";
                        if($company == '' || $company != $v_company_name){
                            $company = $v_company_name;
                            echo "$v_company_name <br>";
                        }

                  echo "</td>";
                  echo "<td>";
                        if($branch != $v_branch){
                            $branch = $v_branch;
                            echo "$v_branch <br>";
                        }

                  echo "</td>";
                  echo "<td>";
                      echo "$v_staff <br/>";
                  echo "</td>";
              echo "</tr>";  
         }
    }    
}
?>
</table>
</body>
</html>

我得到的问题是：

  import sqlite3
def insert_product(product):
    with sqlite3.connect("main.db") as db:
        cursor = db.cursor()
        sql = "insert into Products (CatID,Name,Qty,Price) values (?, ?, ?, ?)"
        cursor.execute(sql, product)
        db.commit()
        print("The product {0} has been inserted successfully" .format(Name))
        cursor = db.execute("SELECT ProductID, CatId, Name, Qty, Price from Products")
        for row in cursor:
            print ("ID = ", row[0])
            print ("CatID = ", row[1])
            print ("NAME = ", row[2])
            print ("Qty = ", row[3])
            print ("Price = ", row[4], "\n")


def insert_category(category):
    with sqlite3.connect("main.db") as db:
        cursor = db.cursor()
        sql = "insert into categories (Name) values (?)"
        cursor.execute(sql, category)
        db.commit()
        print("The category {0} has been inserted successfully" .format(Name))
        cursor = db.execute("SELECT CatID,Name from categories")
        for row in cursor:
            print ("CatID = ", row[0])
            print ("Name = ", row[1], "\n")



if __name__ == "__main__":
    response = input("Do you want to insert a category or a product (c/p) ?")
    if response == "p":
        ID= input("enter the CatID of the product:>> ")
        Name = input("Enter the name of the Product you want to insert: >>")
        Qty = input("Enter the quantity of the stock available: >>")
        Price = input("Enter the price of the product: >>")
        product = (ID,Name,Qty,Price)
        insert_product(product)
        print ("Product inserted successfully")
    else:
        Name = input("Enter the name of the Category you want to insert: >>")
        category = (Name,)
        insert_category(category)
        db.commit()
        print ("The new category {0} has been inserted successfully" .format(Name))

数据库锁定在程序中？

0 个答案: