Unlike Numeric For Loop with Cursor For Loop we don’t have minimum or maximum range which will decide the number of execution. So how many times will this loop execute? This loop will execute for each row returned by the specified cursor and it will terminate either when there is no row...
(New OracleParameter( "N_EMPNO", OracleType.Number)).Value = 7369 cmd.Parameters.Add(New OracleParameter( "IO_CURSOR", OracleType.Cursor)).Direction = ParameterDirection.Output rdr = cmd.ExecuteReader() While (rdr.Read()) REM do something with the values End While rdr.Close() End Using ...
OracleParameter.Value 屬性 參考 意見反應 定義 命名空間: System.Data.OracleClient 組件: System.Data.OracleClient.dll 取得或設定參數的值。 C# 複製 [System.ComponentModel.TypeConverter(typeof(System.ComponentModel.StringConverter))] public override object Value { get; set; } 屬性值 Object 物件...
在硬解析时,Oracle 至少会产生一个parent cursor 和 child cursor, parent cursor 用来保存hash value。 child cursor 用来保存SQL 语句的metadata。parent cursor和child cursor都是shared cursor,它们都是以library cache object handle的方式存在library cache里。 注意: parentcursor和child cursor都是library cache ob...
cursor_parameter_name [IN] datatype [{:= | DEFAULT} expression] For example, you might declare cursors namedc1andc2, as follows: DECLARECURSOR c1 IS SELECT empno, ename, job, sal FROM empWHERE sal > 2000;CURSOR c2 RETURN dept%ROWTYPE ISSELECT * FROM dept WHERE deptno = 10; ...
sql > show parameter processes 进程数 1)关于Oracle9i数据库的数据库管理员用户 Sys: 在Oracle9i 9.0.1之前的数据库中,默认口令字为:change_on_install; 在9.2.0中无默认口令字 System: 在Oracle9i 9.0.1之前的数据库中,默认口令字为manager;在9.2.0中无默认口令字 ...
It performs a cursor loop on the unpublished records on the ALLOC_MFQUEUE table (PUB_STATUS = 'U'). It should only need to execute one loop iteration in most cases. For each record retrieved, GETNXT gets the following: 1. A lock of the queue table for the current Business object. ...
2.1 cursor_sharing=exact,这是cursor_sharing的默认值 2.1.1 查看cursor_sharing 值 SYS@anqing2(rac2)> show parameter cursor_sharing NAME TYPE VALUE --- --- --- cursor_sharing string EXACT 2.1.2 查看当前硬解析值 SYS@anqing2(rac2)> select name,value...
Parameter values can be inserted into the dynamic command using format() and USING. For example, the table name is inserted into the query using format(). The comparison value for col1 is inserted using a USING parameter. Open a cursor that was bound to a query when the ...
以下Visual Basic 示例演示如何使用 OracleDataAdapter 通过Oracle REF CURSOR填充DataSet。 这些示例使用 Oracle Scott/Tiger 架构中定义的表,并需要以下 PL/SQL 包和包正文。 必须在服务器上创建这些示例才能使用示例。在Oracle 服务器上创建以下 Oracle 包。