Question

我是数据库初学者，我在创建表时正在AUTOINCREMENT，但发生了以下错误：

System.Data.SqlClient.SqlException (0x80131904): Incorrect syntax near ','.
   at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolea
n breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception
, Boolean breakConnection, Action`1 wrapCloseInAction)
   at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObj
ect stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
   at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand
 cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler,
TdsParserStateObject stateObj, Boolean& dataReady)
   at System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName,
Boolean async, Int32 timeout, Boolean asyncWrite)
   at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSou
rce`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean
asyncWrite)
   at System.Data.SqlClient.SqlCommand.ExecuteNonQuery()
   at KellenTechnology.Program.Main(String[] args) in c:\Users\Mohit\Documents\V
isual Studio 2013\Projects\KellenTechnology\KellenTechnology\Program.cs:line 39
ClientConnectionId:1629d6a5-8e66-445b-99b1-b009103d0343
♂Data base Connection Closed.

我的代码是：

 string sqlStatement = "CREATE TABLE " + Table1Name + "" 
                    + "(network_id INTEGER PRIMARY KEY AUTOINCREMENT,"
                    + "network_full_name VARCHAR(50) NOT NULL)";

有人可以让我知道它有什么问题吗？我还找到not null identity(1, 1)而不是autoincrement，但这两者有何不同？

Answer 1

MS SQL-Server相当于自动递增称为identity：

string sqlStatement = "CREATE TABLE " + Table1Name + 
                    + "(network_id INTEGER NOT NULL IDENTITY(1,1) PRIMARY KEY,"
                    + "network_full_name VARCHAR(50) NOT NULL)";

Answer 2

尝试使用SQL Server，因为错误是Sql Server的错误

string sqlStatement = "CREATE TABLE " + Table1Name + "" 
                    + " (network_id INTEGER identity(1,1) PRIMARY KEY,"
                    + "network_full_name VARCHAR(50) NOT NULL)";

<强> BEWARE OF SQL INJECTION

创建表时AUTOINCREMENT上'，'附近的语法不正确

2 个答案: