Oracle 标准预定义异常

异定义异常就是那些在pl/sql中已经定义好并给予了异常名称的异常。它们全部放在pl/sql自带的标准包中，这样pl/sql程序员就无需再次定义。Oracle中总共有如下21种标准预定义异常:

Oracle异常名称	错误号	说明
DUP_VAL_ON_INDEX	ORA-00001	You tried to execute an INSERT or UPDATE statement that has created a duplicate value in a field restricted by a unique index.试图破坏一个唯一性限制
TIMEOUT_ON_RESOURCE	ORA-00051	You were waiting for a resource and you timed out.在等待资源时发生超时
TRANSACTION_BACKED_OUT	ORA-00061	The remote portion of a transaction has rolled back.由于发生死锁事务被撤消
INVALID_CURSOR	ORA-01001	You tried to reference a cursor that does not yet exist. This may have happened because you’ve executed a FETCH cursor or CLOSE cursor before OPENing the cursor.试图使用一个未打开的游标
NOT_LOGGED_ON	ORA-01012	You tried to execute a call to Oracle before logging in.没有连接到ORACLE
LOGIN_DENIED	ORA-01017	You tried to log into Oracle with an invalid username/password combination.无效的用户名/口令
NO_DATA_FOUND	ORA-01403	SELECT INTO没有找到数据You tried one of the following: You executed a SELECT INTO statement and no rows were returned.You referenced an uninitialized row in a table.You read past the end of file with the UTL_FILE package.
TOO_MANY_ROWS	ORA-01422	SELECT INTO 返回多行You tried to execute a SELECT INTO statement and more than one row was returned.
ZERO_DIVIDE	ORA-01476	试图被零除You tried to divide a number by zero.
INVALID_NUMBER	ORA-01722	转换一个数字失败You tried to execute an SQL statement that tried to convert a string to a number, but it was unsuccessful.
STORAGE_ERROR	ORA-06500	内存不够或内存被破坏引发的内部错误You ran out of memory or memory was corrupted.
PROGRAM_ERROR	ORA-06501	内部错误,需重新安装数据字典视图和pl/sql包This is a generic “Contact Oracle support” message because an internal problem was encountered.
VALUE_ERROR	ORA-06502	赋值操作，变量长度不足，触发该异常You tried to perform an operation and there was a error on a conversion, truncation, or invalid constraining of numeric or character data.
ROWTYPE_MISMATCH	ORA-6504	宿主游标变量与 PL/SQL变量有不兼容行类型
CURSOR_ALREADY_OPEN	ORA-06511	试图打开一个已打开的游标You tried to open a cursor that is already open.
ACCESS_INTO_NULL	ORA-6530	试图为null 对象的属性赋值
COLLECTION_IS_NULL	ORA-6531	试图给没有初始化的嵌套表变量或者Varry变量赋值
SUBSCRIPT_OUTSIDE_LIMIT	ORA-6532	对嵌套或varray索引使用了负数
SUBSCRIPT_BEYOND_COUNT	ORA-6533	对嵌套或varray索引的引用大于集合中元素的个数

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