The return value should give me back the number of records found. How can I achieve this. -1 nothing found 0 query ok 1 ...n foundes records Can I define the name of the return myself? If yes, how? 164270-test-script-sql.txt How do I query this correctly in C...
一、先说下ExecuteScalar()与ExecuteNonQuery () ExecuteScalar方法返回的类型是object类型,这个方法返回sql语句执行后的第一行第一列的值,由于不知道sql语句到底是什么样的结构(有可能是int,有可能是char等等),所以ExecuteScalar方法返回一个最基本的类型object,这个类型是所有类型的基类,换句话说:可以转换为任意类型。
The value can be a literal, variable, or an expression that evaluates to an integer value. You can use one or more RETURN statements in a stored procedure. The RETURN statement can be used anywhere after the declaration blocks within the SQL-procedure-body. To return multiple output values, ...
retval.Direction = ParameterDirection.ReturnValue; sqlcomm.ExecuteNonQuery();// MISSINGstringretunvalue = (string)sqlcomm.Parameters["@b"].Value; Using a Stored Procedure with Output Parameters https://docs.microsoft.com/en-us/sql/connect/jdbc/using-a-stored-procedure-with-output-parameters?view=sq...
Best Practices to create SQL Connection from C# ? Best Practices to store a fixed, unchanging list of key-value pairs Best to pass variables to another class method in method parameters or call getter;setter method for variable? Best UI design pattern for C# winform project Best way of ...
I am encountering difficulties in ensuring the accuracy of the syntax for my C# 2008 asp.net code. My objective is to retrieve a return value (Select @@Identity) from the stored procedure. My C# code is: SqlConnection conn = new SqlConnection(strConn); ...
Using command As New SqlCommand("kwkj_user_ServerInRole_addrole1", connection) command.CommandType = CommandType.StoredProcedure Dim p As SqlParameter = command.Parameters.Add("@Return_Value", SqlDbType.Int)'标准参数的写法 p.Direction = ParameterDirection.ReturnValue' 定义参数的传输类型是returnvalue ...
A question about regular expressions in T-SQL A stored procedure returning a boolean value indicating wheter a specified value exists in a table. A transport-level error has occurred when receiving results from the server. (provider: TCP Provider, error: 0 - The semaphore timeout period has ex...
[oracle@june2 perl]$ cat a2.pl sub get_value(){ my $var; $var = 100;return200; r... perl oracle 返回函数 转载 mb5ff2f2ed7d163 2015-03-24 19:49:00 106阅读 2 mysql表值函数returntable mysql表值函数returntable 是指使用MySQL数据库中的存储过程或函数实现类似于表的返回值。这一技术非常...
The return status value can be included in subsequent Transact-SQL statements in the batch or procedure that executed the current procedure, but it must be entered in the following form:EXECUTE @return_status = <procedure_name>. Examples