常见的PL/SQL游标错误包括以下几种: 游标未打开错误(Cursor is not open):这种错误通常发生在尝试在未打开的游标上执行操作时。在使用游标之前,必须先打开游标,可以使用OPEN语句来打开游标。 游标已打开错误(Cursor already open):这种错误通常发生在尝试重复打开已经打开的游标时。在打开游标之前,应该先检查游标是否已经打开,
ora-01000: maximum open cursors exceeded:表示已经达到一个进程打开的最大游标数。 1.主要原因:Java代码在执行(Stored Procedure)conn.createStatement()和conn.prepareStatement()时,相当于在数据库中打开了一个cursor。尤其是,如果你的createStatement和prepareStatement是在一个循环里面的话,就会非常容易出现这个问题。...
--Call DBMS_SQL to delete records from table test_table --Note that the code print out the cursor number and doesn't close it! declare l_curnumber; l_dummynumber; begin l_cur :=dbms_sql.open_cursor; DBMS_SQL.PARSE(l_cur,'delete from test_table', DBMS_SQL.NATIVE); l_dummy :=DB...
FUNCTION func_name (choice INT) RETURN Ref_cursor;ENDPackageName; 函数定义为: SQL复制 CREATEORREPLACEFUNCTIONfunc_name (choiceinINT)RETURNPackageName.ref_cursorASout_cursor PackageName.Ref_cursor;BEGINIFchoice =1THENOPENout_cursorFORSELECT*FROMempWHEREcommISNOTNULL; ELSIF choice = 2 THEN OPEN out...
根据X/Open和SQL Access Group SQL CAE规范(1992)所进行的定义,SQLERROR返回SQLSTATE值。SQLSTATE值是包含五个字符的字符串,由2个字符的SQL错误类和3个字符的子类构成。五个字符包含数值或者大写字母, 代表各种错误或者警告条件的代码。成功的状态是由00000标识的。SQLSTATE代码大多数情况下都是定义在SQL标准里的。
OPENCURSORlv_cursorFORSELECTproduct_guidFROMcomm_product.FETCHNEXTCURSORlv_cursorINTOTABLElt_selectionPACKAGESIZEsize. Size = 1: 此时从ST05里观察到表COMM_PRODUCT里总共被扫描的记录数量是1447. 第二次以size = 100执行,PREPARE和OPEN直接变成REOPEN,但是recs仍然是1447. ...
Greetings, I'm getting the following runtime error: SAPSQL_CURSOR_ALREADY_OPEN during extraction of infoSource: 0CO_OM_CCA_9. Runtime Errors SAPSQL_CURSOR_ALREADY_OPEN
Cause: This internal error typically indicates a memory-related error. Action: Check the program for memory-related errors, such as invalid pointers or array-bounds violations. SQL-02117 Invalid SQL Cursor usage: trying to OPEN an OPENed cursor Cause: An attempt was made to OPEN a cursor that...
(20,'more val'); EXEC SQL INSERT INTO t1 VALUES (30,'more val'); EXEC SQL COMMIT WORK; EXEC SQL DECLARE cur SCROLL CURSOR for select c1 from t1 for update; EXEC SQL OPEN cur; EXEC SQL FETCH ABSOLUTE 2 cur INTO :c1ret ; EXEC SQL UPDATE t1 set c2=:c2val where CURRENT OF cur...
SQL SERVERraiserror用法 cursor sqlserver 一、SQL server 游标的简单使用 一个对表进行操作的T-SQL语句通常都可产生或处理一组记录,但是许多应用程序,尤其是T-SQL嵌入的主语言,通常不能把整个结果集作为一个单元来处理,这些应用程序就需要用一种机制来保证每次处理结果集中的一行或几行,游标(cursor)就提供了这种...