@文心快码exception when no data found 文心快码 在PL/SQL中,EXCEPTION WHEN NO_DATA_FOUND用于处理查询没有返回任何数据行的情况。这种异常通常在数据库查询操作中遇到,特别是当执行一个查询(如SELECT语句)时,如果查询没有返回任何数据行,而程序又期望至少有一行数据时,就会抛出此异常。以下是关于EXCEPTION WHEN NO...
题目中的异常处理块未显式处理`ZERO_DIVIDE`,但包含`WHEN OTHERS THEN`分支。`OTHERS`会捕获所有未被其他分支显式处理的异常,因此此时`test.result`会被插入`'ERROR4'`。 1. **ERROR1**(NO_DATA_FOUND):在查询无结果时触发,与除数为0无关。 2. **ERROR2**(TOO_MANY_ROWS):在单行查询返回多行时触发...
在MySQL中处理no_data_found异常是非常重要的,它可以帮助我们更好地管理程序的异常情况,并保证程序的稳定性和可靠性。通过合理地编写异常处理代码,我们可以更好地应对no_data_found异常,提高程序的鲁棒性和可维护性。希望本文对您有所帮助!
Bulk collect当没有数据抛出异常跟implicit cursor 处理不一样。 先看一下implicit cursor的处理吧: cl scr;DECLAREl_descr hardware.descr%type;BEGINSELECTdescrINTOl_descrFROMhardwareWHEREaisle=0ANDitem=0; dbms_output.put_line('Item was found'); EXCEPTIONWHENno_data_foundTHENdbms_output.put_line('Inval...
NO_DATA_FOUND SELECT ... INTO ... 时,没有找到数据 DUL_VAL_ON_INDEX 试图在一个有惟一性约束的列上存储重复值 CURSOR_ALREADY_OPEN 试图打开一个已经打开的游标 TOO_MANY_ROWS SELECT ... INTO ... 时,查询的结果是多值 ZERO_DIVIDE 零被整除 ...
ORA-01403:no data found exception的解决小道 问题:在使用select into from tablename这样的隐式游标的时候,如果查不到数据,那么会报ora-01403的错误。而每次使用显式游标,再打开取值就显得很麻烦。一个经验丰富的老师提出可以用类似max min等这样的聚合函数,来避免select into带来的异常,又避免每次使用游标的麻烦...
WHEN NO_DATA_FOUND THEN -- catches all ’no data found’ errors 2、异常的分类 有两种类型的异常,一种为内部异常,一种为用户自定义异常,内部异常是执行期间返回到PL/SQL块的ORACLE错误或由PL/SQL代码的某操作引起的错误,如除数为零或内存溢出的情况。用户自定义异常由开发者显示定义,在PL/SQL块中传递信息...
oracle.kv.MetadataNotFoundException All Implemented Interfaces: Serializable, oracle.kv.impl.util.FastExternalizable public class MetadataNotFoundException extends FastExternalizableException The exception is thrown when an expected piece of metadata is not found. This probably indicates an inconsistency betwe...
Most users of Linux start the Vivado tools from a command shell. In this case, the "Start in" directory is the directory they were in when Vivado was launched. Vivado_pid###.debug. The debug file contains the internal tool state. There is no information about your design. In some cases...
The exception that is thrown when the value of an argument is outside the allowable range of values as defined by the invoked method. C# Copy public class ArgumentOutOfRangeException : ArgumentException Inheritance Object Exception SystemException ArgumentException ArgumentOutOfRangeException Examples The...