四、DECLARE CURSOR WITH PARAMETER (%ISOPEN) DECLARE t_name books.books_name%TYPE; CURSOR cur(id varchar2) IS SELECT books_name FROM books WHERE books_id=id; BEGIN IF cur%ISOPEN THEN --%ISOPEN DBMS_OUTPUT.PUT_LINE('CURSOR HAS BEEN OPENED!'); ELSE OPEN CUR('0003'); END IF; FETCH c...
The result set of this cursor is all course_numbers whose subject_id matches the subject_id passed to the cursor via the parameter. Cursor with return clause The basic syntax for a cursor with a return clause is: CURSOR cursor_name RETURN field%ROWTYPE IS SELECT_statement; For example, you...
Ifyou have no library cache misses, then you might be able to accelerateexecution calls by setting the value of the initialization parameter CURSOR_SPACE_FOR_TIME to true. This parameter specifieswhether a cursor can be deallocatedfromthe library cache to make room for anew SQL statement. CURSOR...
问oracle open cursor with字符串变量出现错误EN介绍oracle cursor(游标)之前先，介绍一下oracle的库缓存...
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...
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...
LRM-00112: multiplevalues not allowed for parameter 'query' EXP-00019: failed toprocess parameters, type 'EXP HELP=Y' for help EXP-00000: Exportterminated unsuccessfully 这通常是因为Query子句包含特殊字符导致的,由于特殊字符在命令行通常需要转义,所以导出的语法结构通常与众不同。在Windows上,通常可以使用...
<parameter property="PYR_XMS" jdbcType="VARCHAR" javaType="java.lang.String" mode="OUT"/> //存储过程传出参数 <parameter property="MY_CUR" jdbcType="ORACLECURSOR" javaType="java.sql.ResultSet" mode="OUT"/> //存储过程传出参数 </parameterMap> ...
OPENcursor_name[([parameter =>]value[, [parameter =>]value]…)]; 在向游标传递参数时,可以使用与函数参数相同的传值方法,即位置表示法和名称表示法。PL/SQL程序不能用OPEN语句重复打开一个游标。 l提取游标数据:就是检索结果集合中的数据行,放入指定的输出变量中。
SQL> show parameter open_cursors; 查看当前打开的游标数目 SQL> select count(*) fromv$open_cursor; 修改ORACLE最大游标数 SQL> alter system set open_cursors=1000 scope=both; 关闭密码过期 --1、查看用户的proifle是哪个,一般是default: (DBSNMP=》MONITORING_PROFILE) ...