在本章中,无涯教程将讨论PL/SQL中的异常,异常是程序执行期间的错误条件, PL/SQL支持程序员使用程序中的 EXCEPTION 块捕获此类条件,并针对错误条件采取适当的措施。有两种类型的异常- System-defined 异常 User-defined 异常 异常处理语法 异常处理的一般语法如下,在这里,您可以列出尽可能多的异常,默认异常将使
PL/SQL Raise ExceptionsSummary: in this tutorial, you will learn how to use the PL/SQL RAISE statement to raise a user-defined exception, an internally defined exception, and re-raising an exception. To raise an exception explicitly, you use the RAISE statement. The RAISE statement allows you...
PLSQL handles the errors caused at the server level and publishes them using the following functions: EXCEPTION This datatype is declared in DECLARE section of the PLSQL code enables to call those as and when they are required. An internal exception is raised implicitly whenever your PL/SQL pr...
Propagating Exceptions in PL/SQL When an exception is raised,if PL/SQL cannot find a handler for it in the current block or subprogram ,the exception propagates. That is ,the exception reproduces itself in successive enclosing blocks until a handler is found or there are no more blocks to ...
FORALL i IN 1..v_emp_tab.COUNT INSERT INTO employees VALUES v_emp_tab(i); -- 检查是否有错误发生 FOR i IN 1..SQL%bulk_exceptions.COUNT LOOP DBMS_OUTPUT.PUT_LINE('Error Index: ' || SQL%bulk_exceptions(i).error_index); DBMS_OUTPUT.PUT_LINE('Error Code: ' || SQL%bulk_exceptions...
© 2010 Josh Juneau and Matt Arena About this chapter Cite this chapter Juneau, J., Arena, M. (2010). Exceptions. In: Oracle and PL/SQL Recipes. Apress, Berkeley, CA. https://doi.org/10.1007/978-1-4302-3208-7_9 Download citation ...
Oracle 异常模型在异常引发和异常处理方面都不同于 SQL Server。 最好使用 SQL Server 异常模型作为 Oracle PL/SQL 代码迁移的一部分。 每当FORALL与子句一起使用SAVE EXCEPTIONS的语句时,SSMA 都不支持它并生成错误消息。 示例 在以下示例中,使用包含SAVE EXCEPTIONS子句的FORALL语句。
= SQL%BULK_EXCEPTIONS.COUNT; DBMS_OUTPUT.PUT_LINE('Number of errors is ' || ERRORS); FOR i IN 1..ERRORS LOOP DBMS_OUTPUT.PUT_LINE('SQLCODE: ' || SQL%BULK_EXCEPTIONS(i).ERROR_INDEX); DBMS_OUTPUT.PUT_LINE('SQLERRM: ' ||SQLERRM(-SQL%BULK_EXCEPTIONS(i).ERROR_CODE));ENDLOOP;END;...
SQLERRM([error_number])Code language:PostgreSQL SQL dialect and PL/pgSQL(pgsql) In this syntax, theerror_numbercan be any valid Oracle error number. If you omit theerror_numberargument, the function will return the error message associated with the current value ofSQLCODE. ...
Name EXC-05: Only RAISE exceptions for errors, not to branch execution control. Synopsis The RAISE statement is an easy and powerful way to abort normal processing in a program and … - Selection from Oracle PL/SQL Best Practices [Book]