pl sql display message

-- Exception test declarev_ename EMP. empno % type; -- defines the variable beginselect ename into v_ename from EMP where empno = & gno; dbms_output.put_line ('name: '| v_ename ); exception when no_data_found then dbms_output.put_line ('unfound');

1>>>>> exception error Handling1 > Pre-defined exception handling Partial ORACLE exception errors for predefined descriptions The handling of such exceptions is simply to refer to the exception-handling section of the PL/SQL block, directly

PL/SQL Exception handling method  1: What is exception handling: PL/SQL provides a function to handle exceptions, called exception Handling in PL/SQL blocks, using exception handling we are able to test code and avoid exception exits. PL/SQL

In the process of operation, it is sometimes necessary to send the data result set of SQL query in HTML form, so it is necessary to stitch the result set of SQL query into HTML code. There are usually two different ways to do this. One is to use the

PL/SQL smart call stack Analysis PL/SQL smart call stack Analysis The three DBMS_UTILITY functions(DBMS_UTILITY.FORMAT_CALL_STACK, DBMS_UTILITY.FORMAT_ERROR_STACK, and DBMS_UTILITY.FORMAT_ERROR _ BACKTRACE) have been crucial aids in diagnosing and

PL/SQL exceptions The pre-defined exceptions and codes of PL/SQL are as follows:Exception Oracle error sqlcode Value MeaningAccess_into_null ORA-06530-6530 the referenced object is assigned directly to the object without InitializationCase_not_found

Summarized as follows:dbms_utility. Format_call_stack -This was introduced in Oracle7, dbms_utility. Format_call_stack this built-in function returns a formatted string that shows the execution call stack: The sequence of calls to all procedures or

PL/SQL smart call stack analysis, plsql PL/SQL smart call stack AnalysisOriginal article: http://www.oracle.com/technetwork/issue-archive/2014/14-jan/o14plsql-2045346.html The three DBMS_UTILITY functions(DBMS_UTILITY.FORMAT_CALL_STACK,

PLSQL variables can be of the following four types: -Scalar) -Composite) -Reference) -Lob type (large object) 1. scalar type:-Only variables with a single value can be stored.-When defining a scalar, you must specify the data type. 1.1 common

Joke: In entering the company for a period of time, will always meet a variety of small problems, but finally still "looking for Niang, ask Google" solutionThe decision. But recently the company introduced a few new recruits, small problems a bunch