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ORA-01722: invalidnumber

--- ProblemSelect owner, index_name, DEGREE from DBA_INDEXES where DEGREE> 1*ERROR at line 1:ORA-01722: invalid number.-- 1 get execution trace informationSQL> set autotrace traceonlySQL> select owner, index_name, DEGREE from DBA_INDEXES where

Basic Oracle binary and big object types

Reference 1. Introduction to Data Types in OracleConceptsOracleDataType: ## i41462.oraclejdbc#guid1] get and set of Object Data Types in java in workwithoracleobjecttype: References 1. oracle Concepts introduction to Data Types in Oracle DataType:

JSON, this is a copy.

Read Catalogue Two kinds of structure of JSON Recognize JSON strings How to use JSON in JS How to use JSON in. Net Summarize The full name of JSON is "JavaScript Object Notation", which means the JavaScript objects

Com interoperability-use the. NET type in the VB Script

Please refer to the following sectionVbsCode: SetOBJ = Createobject ("System. Collections. arraylist") OBJ. Add ("This is a test") OBJ. Add (1) OBJ. Add (OBJ)   Msgbox OBJ (0) Msgbox OBJ (1) Msgbox OBJ (2). tostring ()  

After you move the core object table dependency $, the database is not started.

After you move the core object table dependency $, the database is not started.Move table:SQL> startupORACLE instance started.Total System Global Area 281018368 bytesFixed Size 2083336 bytesVariable Size 88081912 bytesDatabase Buffers 184549376

Notes when using VC to link static libraries

The VC project must be consistent with the linked static library (*. Lib) file:For example: Does the Shared Mode use mfc dll or the static mode use mfc dll?Is it multithreading or a single thread? Is debug mode or release mode? Project property

Qt5 View coordinates

An error occurred .. Main. OBJ:-1: Error: lnk2001: the external symbol that cannot be parsed "public: Virtual struct qmetaobject const * _ thiscall myview: metaobject (void) const "([email protected] @ [email protected] @ xz) Main. OBJ:-1: Error:

Load toString to implement JS HashMap Analysis

However, please make a careful comparison and you will find that the difference is still very big. The key of Java HashMap is of the Object type, so it can be any type of parameter, and the key of JS can only be a string or number. You may say that

ORA-00704-ORA-01555

Database startup error ORA-00600: [kccpb_sanity_check_2] ORA-00600: internalerrorcode, arguments: [kccpb_sanity_check_2], [1292931], [1188440], [0x000000000], [], [], [], [] SUCCESS: diskgroupRACDBwasdismounted the error indicates the control

Members of classes in object-oriented

Field: Static fields Normal field PS: Static field code is loaded when it has been created Method All methods belong to the class 1. Common method: At least one self, object execution 2, static method: Arbitrary

10046 Trace File Analysis

Sql> CREATE TABLE t10046 as SELECT * from Dba_objects; Table created. Sql> Select File_id,block_id,blocks from dba_extents where segment_name= ' T10046 '; file_id block_id BLOCKS------------------------------1 94664 8 1 94672 8 1

Js converts an object with numeric attribute names to an array

Although it is not commonly used, we can add the attribute named "Number" to the object:Copy codeThe Code is as follows:Var obj = {};Obj [0] = 1;Obj [1] = 2; This object is not an array type. Is there any way to convert it to an array type? In

Load toString to implement JS HashMap Analysis

However, please make a careful comparison and you will find that the difference is still very big. The key of Java HashMap is of the Object type, so it can be any type of parameter, and the key of JS can only be a string or number. You may say that

JavaEE ------ Hibernate Study Notes

JavaEE ------ Hibernate Study NotesHibernate framework needs to be configuredHibernate. cfg. xml file (which is set to connect to the database and MAP value object) The value object is also required: For example, Custom. hbm. xml is

Reprint--json Conversion

The full name of JSON is "JavaScript Object Notation", which means the JavaScript objects notation, which is a text-based, language-independent, lightweight data interchange format. XML is also a data interchange format, why not choose XML? Since

Reading notes-You don't know the JS on-object

good to want the object ...A different call location for a function causes the this binding object to be different. But what exactly is the object, and why bind them? (Yes, I don't understand it too)  GrammarThere are two forms of object

JSON usage Explained

JSON detailedRead Catalogue Two kinds of structure of JSON Recognize JSON strings How to use JSON in JS How to use JSON in. Net Summarize The full name of JSON is "JavaScript Object Notation", which means the JavaScript

Difference Call,apply,bind

First, explore the principle of call methodfunction (obj) {/// 1, let the this in FN point to obj// eval (this.tostring (). Replace ("This", "obj")); // 2. Let the FN method execute again // This ();}functionfn1 () {Console.log (1); Console.log (

Python Basics Summary

Python Basic user input Username = input (' Please enter user name: ') What the hell is PYC? Python, like Java and C #, is a virtual machine-based language, and when we use Python Hello.py, is to tell the virtual machine I

A preliminary study of JSON

What is JSON?JSON: JAvaScript Object Notation (JavaScript object notation)JSON is the syntax for storing and exchanging textual information. Similar to XML.JSON is smaller, faster, and easier to parse than XML.Example: This sites object is an array

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