Example 1: Cursor For Loop With Simple Explicit Cursor SET SERVEROUTPUT ON; DECLARE CURSOR cur_RebellionRider IS SELECT first_name, last_name FROM employees WHERE employee_id >200; BEGIN FOR L_IDX IN cur_RebellionRider LOOP DBMS_OUTPUT.PUT_LINE(L_IDX.first_name||' '||L_IDX.last_name)...
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...
You use theOPENstatement to pass parameters to a cursor. Unless you want to accept default values, each formal parameter in the cursor declaration must have a corresponding actual parameter in theOPENstatement. For example, given the cursor declaration DECLAREemp_name emp.ename%TYPE;salary emp.sal...
cursor [del_cursor] is select a.*, a.rowid row_id from [table_name] a order by a.rowid; begin for v_cusor in [del_cursor] loop if v_cusor.[time_stamp] < to_date('2014-01-01','yyyy-mm-dd') then delete from [table_name] where rowid = v_cusor.row_id; end if; if mo...
In the following example, you can replaceFORwithISfor Oracle compatibility. Declare a cursor in PL/pgSQL to be used with any query. DECLARE c3 CURSOR (var1 integer) FOR SELECT * FROM employees where id = var1; The id variable is replaced by an integer parameter value when...
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...
Theoptimizer environment does not match the existing child cursor. For example: SQL>select count(*) from emp; ->>1 PARENT, 1 CHILD SQL>alter session set optimizer_mode=ALL_ROWS SQL>select count(*) from emp; ->> 1 PARENT, 2 CHILDREN ...
指定字段或属性的数据类型,以用于OracleParameter。 C#复制 publicenumOracleType 继承 Object ValueType Enum OracleType 字段 展开表 名称值说明 BFile1 OracleBFILE数据类型,它包含存储在外部文件中的最大为 4 GB 的二进制数据的引用。 使用具有OracleBFile属性的 OracleClientValue数据类型。
With Method 3, you use the following sequence of embedded SQL statements:PREPARE statement_name FROM { :host_string | string_literal }; DECLARE cursor_name CURSOR FOR statement_name; OPEN cursor_name [USING host_variable_list]; FETCH cursor_name INTO host_variable_list; CLOSE cursor_name; ...
3.1 Tight Integration with SQL --与SQL的紧密结合 PL/SQL is tightly integrated with SQL, themost widely used database manipulation language. For example: (1)PL/SQL letsyou use all SQL data manipulation, cursor control, and transaction controlstatements, and all SQL functions, operators, and pse...