英文:
Oledb ExecuteNonQuery function is not inserting all data into database
问题
以下是您提供的代码部分的翻译：
我尝试在C#中将值插入Access数据库，但只有部分数据被插入。数据库中的所有数据类型和C#代码都是正确的。下面的代码会引发错误：> INSERT INTO语句中的语法错误代码：string insertStatement ="INSERT INTO Car (Category, Model, CarYear, Mileage, CostPerDay, Availability, Location, Image, Manufacturer, Description) " +"VALUES (@Category, @Model, @CarYear, @Mileage, @CostPerDay, @Availability, @Location, @Image, @Manufacturer, @Description)";OleDbConnection connection = new OleDbConnection(CarRentalDB.ConnectionString);OleDbDataAdapter adapter = new OleDbDataAdapter(insertStatement, connection);OleDbCommand command = new OleDbCommand(insertStatement, connection);command.Parameters.AddWithValue("@Category", car.category.ToString());command.Parameters.AddWithValue("@Model", car.model);command.Parameters.AddWithValue("@CarYear", car.year);command.Parameters.AddWithValue("@Mileage", car.mileage);command.Parameters.AddWithValue("@CostPerDay", car.costPerDay);command.Parameters.AddWithValue("@Availability", car.availability);command.Parameters.AddWithValue("@Location", car.location);command.Parameters.AddWithValue("@Image", car.image);command.Parameters.AddWithValue("@Manufacturer", car.manufacturer);command.Parameters.AddWithValue("@Description", car.description);connection.Open();command.ExecuteNonQuery();然而，如果我去掉Image、Manufacturer和Description，那么它就会执行而不会出现错误。以下是不返回错误并只插入部分数据的代码：string insertStatement ="INSERT INTO CAR (Category, Model, CarYear, Mileage, CostPerDay, Availability, Location)" +" VALUES (@Category, @Model, @CarYear, @Mileage, @CostPerDay, @Availability, @Location)";OleDbConnection connection = new OleDbConnection(CarRentalDB.ConnectionString);OleDbDataAdapter adapter = new OleDbDataAdapter(insertStatement, connection);OleDbCommand command = new OleDbCommand(insertStatement, connection);command.Parameters.AddWithValue("@Category", car.category.ToString());command.Parameters.AddWithValue("@Model", car.model);command.Parameters.AddWithValue("@CarYear", car.year);command.Parameters.AddWithValue("@Mileage", car.mileage);command.Parameters.AddWithValue("@CostPerDay", car.costPerDay);command.Parameters.AddWithValue("@Availability", car.availability);command.Parameters.AddWithValue("@Location", car.location);connection.Open();command.ExecuteNonQuery();
请注意，这些翻译部分仅包括您提供的代码和错误消息，没有其他内容。如果您需要更多帮助，请随时提问。
英文:
I'm trying to insert values into an Access database with C#, but only some of the data is being inserted. All of the data types in the database and the C# code are correct.
This code below throws an error:
> Syntax ERROR in INSERT INTO statement
Code:
string insertStatement ="INSERT INTO Car (Category, Model, CarYear, Mileage, CostPerDay, Availability, Location, Image, Manufacturer, Description) " +"VALUES (@Category, @Model, @CarYear, @Mileage, @CostPerDay, @Availability, @Location, @Image, @Manufacturer, @Description)";OleDbConnection connection = new OleDbConnection(CarRentalDB.ConnectionString);OleDbDataAdapter adapter = new OleDbDataAdapter(insertStatement, connection);OleDbCommand command = new OleDbCommand(insertStatement, connection);command.Parameters.AddWithValue("@Category", car.category.ToString());command.Parameters.AddWithValue("@Model", car.model);command.Parameters.AddWithValue("@CarYear", car.year);command.Parameters.AddWithValue("@Mileage", car.mileage);command.Parameters.AddWithValue("@CostPerDay", car.costPerDay);command.Parameters.AddWithValue("@Availability", car.availability);command.Parameters.AddWithValue("@Location", car.location);command.Parameters.AddWithValue("@Image", car.image);command.Parameters.AddWithValue("@Manufacturer", car.manufacturer);command.Parameters.AddWithValue("@Description", car.description);connection.Open();command.ExecuteNonQuery();
However, if I get rid of the Image, Manufacturer, and Description then it executes with no errors. Here is the code that does not return errors and inserts only some of the data:
string insertStatement ="INSERT INTO CAR (Category, Model, CarYear, Mileage, CostPerDay, Availability, Location)" +" VALUES (@Category, @Model, @CarYear, @Mileage, @CostPerDay, @Availability, @Location)";OleDbConnection connection = new OleDbConnection(CarRentalDB.ConnectionString);OleDbDataAdapter adapter = new OleDbDataAdapter(insertStatement, connection);OleDbCommand command = new OleDbCommand(insertStatement, connection);command.Parameters.AddWithValue("@Category", car.category.ToString());command.Parameters.AddWithValue("@Model", car.model);command.Parameters.AddWithValue("@Category", car.category.ToString());command.Parameters.AddWithValue("@Model", car.model);command.Parameters.AddWithValue("@CarYear", car.year);command.Parameters.AddWithValue("@Mileage", car.mileage);command.Parameters.AddWithValue("@CostPerDay", car.costPerDay);command.Parameters.AddWithValue("@Availability", car.availability);command.Parameters.AddWithValue("@Location", car.location);connection.Open();command.ExecuteNonQuery();
Here is what the data looks like (excuse the multiple entries of the same data)
Thank you for your time!
答案1
得分: 1
如果出现语法错误，那几乎肯定是因为您将保留字用作标识符。我敢肯定，如果您查找一下Access保留字的列表，您可能会找到Image和/或Description，根据您的解释。请将这些标识符用方括号括起来：
, [Image], Manufacturer, [Description])
然后您应该可以正常运行。您可以逐个尝试它们，看看是否只是其中一个出了问题 - Image几乎肯定会有问题，但Description就不太确定。请注意，您始终可以将所有标识符都括在方括号中，这样就不会出现此问题。
英文:
If there's a syntax error then that's almost certainly because you are using a reserved word as an identifier. I'm sure you can find a list of Access reserved words if you look but it's likely Image and/or Description, based on your explanation. Wrap those identifiers in brackets
, [Image], Manufacturer, [Description])
and you should be good to go. You can try each one individually to see if it's just one of them - Image is almost certainly a problem but not sure about Description. Note that you can always just wrap all your identifiers in brackets and you'll never have this issue.
答案2
得分: 0
如果出现语法错误，那几乎肯定是因为您将保留字用作标识符。我确定您可以找到Access保留字列表，但根据您的解释，很可能是Image和/或Description。将这些标识符括在方括号中（[Image]，Manufacturer，[Description]），然后您应该可以继续。您可以逐个尝试它们，以查看是否只有其中一个出现问题 - Image几乎肯定会有问题，但Description就不太确定。请注意，您始终可以将所有标识符都括在方括号中，这样您将永远不会遇到此问题。
英文:
If there's a syntax error then that's almost certainly because you are using a reserved word as an identifier. I'm sure you can find a list of Access reserved words if you look but it's likely Image and/or Description, based on your explanation. Wrap those identifiers in brackets
, [Image], Manufacturer, [Description])
and you should be good to go. You can try each one individually to see if it's just one of them - Image is almost certainly a problem but not sure about Description. Note that you can always just wrap all your identifiers in brackets and you'll never have this issue.
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