[英]“pls-00201 identifier must be declared” in ASP.NET/C#
I have the following stored procedure which I'd like to use in C#/.NET: 我有以下存储过程,我想在C#/ .NET中使用:
CREATE OR REPLACE
procedure contact_return(
v_urn IN VARCHAR2,
p_cursor OUT SYS_REFCURSOR )
AS
sql_statement VARCHAR2(4000) := '
SELECT URN,
FIRSTNAME,
LASTNAME,
TITLE,
MOBILE,
WORK,
EMAIL
FROM CONTACT
WHERE urn = NVL(:1,v_contact_urn)';
BEGIN
OPEN p_cursor FOR sql_statement USING v_urn;
Using this code, I get en error: PLS-00201: identifier 'CONTACT_RETURN' must be declared 使用此代码,我得到错误: PLS-00201:必须声明标识符'CONTACT_RETURN'
OracleCommand cmd = new OracleCommand();
cmd.Connection = conn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "contact_return";
cmd.Parameters.Add("v_urn", OracleDbType.Int64).Value = null;
cmd.Parameters.Add("p_cursor", OracleDbType.RefCursor).Direction = ParameterDirection.Output;
As far as I can see, I have declared the stored procedure ('contact_return') correctly, so cannot figure out why I'm getting this error. 据我所见,我已正确声明存储过程('contact_return'),因此无法弄清楚为什么我收到此错误。
Any help would be much appreciated, thank you :) 任何帮助将不胜感激,谢谢:)
shouldn;t this 不应该这样
CREATE OR REPLACE
procedure contact_return(
v_urn IN VARCHAR2,
p_cursor OUT SYS_REFCURSOR )
AS
sql_statement VARCHAR2(4000) := '
SELECT URN,
FIRSTNAME,
LASTNAME,
TITLE,
MOBILE,
WORK,
EMAIL
FROM CONTACT
WHERE urn = NVL(:1,v_contact_urn)';
BEGIN
OPEN p_cursor FOR sql_statement USING v_urn;
be 是
CREATE OR REPLACE
procedure contact_return(
v_urn IN VARCHAR2,
p_cursor OUT SYS_REFCURSOR )
AS
BEGIN
DECLARE sql_statement VARCHAR2(4000) := '';
SELECT URN,
FIRSTNAME,
LASTNAME,
TITLE,
MOBILE,
WORK,
EMAIL
FROM CONTACT
WHERE urn = NVL(:1,v_contact_urn)';
OPEN p_cursor FOR sql_statement USING v_urn;
END;
To call an Oracle store procedure containing OUT
parameter of type SYS_REFCURSOR
you need to use ODP.NET . 要调用包含
SYS_REFCURSOR
类型的OUT
参数的Oracle存储过程,您需要使用ODP.NET 。
The template solution will be like this: 模板解决方案将如下所示:
using Oracle.DataAccess;
using Oracle.DataAccess.Client;
public DataTable Call_contact_return(string v_urn_value)
{
using (OracleConnection cn = new OracleConnection(DatabaseHelper.GetConnectionString()))
{
OracleDataAdapter da = new OracleDataAdapter();
OracleCommand cmd = new OracleCommand();
cmd.Connection = cn;
cmd.InitialLONGFetchSize = 1000;
cmd.CommandText = DatabaseHelper.GetDBOwner() + "contact_return";
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add("v_urn", OracleDbType.Char).Value = v_urn_value;
cmd.Parameters.Add("p_cursor", OracleDbType.RefCursor).Direction = ParameterDirection.Output;
da.SelectCommand = cmd;
DataTable dt = new DataTable();
da.Fill(dt);
return dt;
}
}
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