Oracle Database need not verify thata cursor is in the cache because it cannot be deallocated while an applicationcursor associated with it is open.
Oracle Database need not verify thata cursor is in the cache because it cannot be deallocated while an applicationcursor associated with it is open.
The basic syntax for a cursor with parameters is: CURSOR cursor_name (parameter_list) IS SELECT_statement; For example, you could define a cursor called c2 as below. CURSOR c2 (subject_id_in IN varchar2) IS SELECT course_number from courses_tbl where subject_id = subject_id_in; The re...
select * fromnls_session_parameters(客户端字符) 查询语句:select userenv('language') from dual;(客户端字符) 查询结果:SIMPLIFIED CHINESE_CHINA.ZHS16GBK oracle最大游标数修改和查询 查看ORACLE最大游标数 SQL> show parameter open_cursors; 查看当前打开的游标数目 SQL> select count(*) fromv$open_cursor;...
CommandType.StoredProcedure cmd.Parameters.Add(NewOracleParameter("N_EMPNO", OracleType.Number)).Value =7369cmd.Parameters.Add(NewOracleParameter("IO_CURSOR", OracleType.Cursor)).Direction = ParameterDirection.Output rdr = cmd.ExecuteReader()While(rdr.Read())REMdosomethingwiththe valuesEndWhile...
cursor cache Cursors closed explicitly after each execution Frequent logins and logoffs Underlying object structure being modified (for example truncate) Shared pool too small Sessions (in V$SESSTAT) with high: parse time CPU parse time elapsed Ratio of parse count (hard) / execute count Ratio of...
Returns a new cursor with the same transaction and locker ID as the original cursor. This is useful when an application is using locking and requires two or more cursors in the same thread of control. Parameters: samePosition - If true, the newly created cursor is initialized to refer to...
) Using conn As New OracleConnection(connString) Dim cmd As New OracleCommand() Dim rdr As OracleDataReader conn.Open() cmd.Connection = conn cmd.CommandText = "CURSPKG.OPEN_TWO_CURSORS" cmd.CommandType = CommandType.StoredProcedure cmd.Parameters.Add(New OracleParameter( _ "EMPCURSOR", ...
The output parameter with the OracleDbType property set is bound to OracleDbType.RefCursor. None of the output parameters of type OracleDbType.RefCursor is populated after the ExecuteReader method is invoked. If there are multiple output REF CURSOR parameters, use the NextResult method of the ...
parameters in oracle should start with : for example :pr1 passing input parameters as defined by database/sql package.parameter type int64 / float64 and their equivalent string time.Time any type that support Valuer interface NVarChar TimeStamp TimeStampTZ sql.Null* and go_ora.Null* for all ...