truven data dictionary

Tags: des bytes Space instance ESC description case Execution chinaReprinted from: Summary of Oracle Common data dictionaries and SQL statements Oracle Common Command Encyclopedia (useful, take notes) I. Oracle DATA dictionaryA data dictionary is where Oracle stores information about a database and uses it to describe

The ORACLE tutorial is a brief analysis of Oracle Data dictionary technology. A data dictionary is a place where Oracle stores database information. It is used to describe data. For example, the Creator information, creation time information, tablespace information, and user

show the index specification created for the nickname Information constraints SYSCAT. TabconstSYSCAT. CHECKSSYSCAT. ColchecksSYSCAT. ConstdepSYSCAT. REFERENCES This set of views shows the information constraints defined for the nicknameSYSCAT. Tabconst show constraints for each definitionSYSCAT. CHECKS and SYSCAT. Colchecks displaying information about CHECK constraintsSYSCAT. CONSTDEP list the objects on which the constraint dependsSYSCAT. REFERENCES List referential co

Through the previous content, we learned that this structure of the list is appropriate for organizing values into a structure and referencing them by number. But sometimes we need a more convenient way to access, a data structure that operates on the reference value by name, and this type of structure is called mapping. The dictionary is the type of mapping in Python (the only one known to me).Use of dicti

In the data dictionary you want to export data in the air right, new query, execute the following code can Copy Code code as follows: SELECT (case when A.colorder=1 then D.name else "end) Table name, D.xtype as table type, A.colorder field ordinal number, A.name Field Name, (Case when ColumnProperty (A.id,a.name, ' isidentity ') =1 then ' √ ' Els

Error log errors: 160719 14:51:01 [ERROR] cannot find or open table wu777/processlist from The internal data dictionary of InnoDB though the. frm file for the Table exists. Maybe you have deleted and recreated InnoDB data Files but have forgotten to delete the corresponding. frm files InnoDB tables, or you have moved. frm files to another database? Or, the table

0x 01 Dictionary IntroductionThe child and list are the two most common data types in Python, the dictionary is the data type of the key-value pair (key-value) format, it has the same index as the list, but not the subscript in the list, but the key is used as the index, the value of the key is values, so the

x = {1:2, 3:4, 4:3, 2:1, 0:0}sorted = sorted (X.iteritems (), Key=lambda x:x[1], reverse=true)Import operator;sorted = sorted (X.iteritems (), Key=operator.itemgetter (1), reverse=true)x = [(0, 0), (2, 1), (1, 2), (4, 3), (3, 4)]sorted = sorted (X.iteritems (), Key=lambda x:x[1], reverse=true)Import operator;sorted = sorted (X.iteritems (), Key=operator.itemgetter (1), reverse=true)x = [{' Name ': ' Homer ', ' age ': ' the ', ' {' name ': ' Bart ', ' Age ': 10}]sorted = sorted (x, Key=operator.i

. h file #import . m file #import "TestKVC.h" @implementation TestKVC- (ID) init{ self=[superinit];if (self) { mArray=[NSMutableArrayarray]; mdictionary=[nsmutabledictionarydictionary];} returnself;} - (void) SetObject: (ID) Anobjectatindexedsubscript: (Nsuinteger) index{[ Marrayinsertobject:anobjectatindex:index];} - (ID) objectatindexedsubscript: (Nsuinteger) idx{return[marray OBJECTATINDEX:IDX];} - (void) SetObject: (ID) Objectforkeyedsubscript: (id Use TestKVC*test=[[TestKVCalloc]init]; t

1. DictionariesKey-value pairs.1dict={"Key1":"value1",2 "Key2":"value2"3 }4 5 #add a new key/value pair6dict["Key3"] ="Value3"7 8 #Change a Key/value pair9dict["Key2"] ="NewValue"Ten One #Delete a key/value pair A deldict["Key1"] - - forKey,valueinchDict.items (): the Print("%s:%s"%(key,value)) - - if "Key2" inchdict: - Print("Find Key2")2. ReferencesWhen initializing object A with a complex object B, A is just a reference to B! A and B point to the same piece of memory.If

Every time you develop a project, you will always be asked to provide a data dictionary, each time you manually write a document too tired, so write this extension, automatically read the database information and display on the Web page, support export Html and PDF files. Export Html is actually a compressed package that generates and exports an offline version. Export PDF uses the Laravel-snappy expansion

;select constraint_name, Constraint_type,search_condition, R_constraint_nameFrom user_constraints WHERE table_name = UPPER (' table_name ');Vi. stored procedures and functionsView the status of functions and stored proceduresSql>select object_name,status from user_objects where object_type= ' FUNCTION ';Sql>select object_name,status from user_objects where object_type= ' PROCEDURE ';View source code for functions and proceduresSql>select text from All_source where Owner=user and Name=upper (' pl

PHP generates MySQL data dictionary word