grammarly synonyms

, which holds the information in this class. Inside, there is a static inner class called State. We can capture the current state in a later process using this method. /** * Captures The state of all Attributes. The return value can be passed to * {@link #restoreState} to restore the state of this or another attributesource. */Public State Capturestate () { final state state = This.getcurrentstate (); return (state = = null)? Null: (state) State.clone (); } Lucene de

than original, now teach you how to do false original article. First of all, what is false original: is to use other people's articles for reprocessing, and then become their own articles, so that the search engine is a piece of our own original article, thereby increasing the weight of the site. Here are some of the most common ways to do that: First: Start with the title change. 1, the title of the article to rewrite (preferably with the original title expression meaning is relevant); 2,

snapshot before each update.Scenario 4: Working with Views:You can create a new database and move the test_table into the library. When you need to recover, you just need to recover this very small database. The simplest way to access the data from the source database is to create a view that selects all the data for all the columns in the Test_table table. Note, however, that this method requires renaming or deleting the table of the source database before creating the view:Use a database that

Permissions ( for objects, like table objects, etc. ): Object permissions:Select, UPDATE, INSERT, ALTER, INDEX, delete, all//all include all permissions object that the owner has all the permissions. 1. give the user permission to manipulate objects: GRANT Object_priv [(columns)] On object to {user|role| public} [with GRANT OPTION]; allow users assigned to permissions to continue assigning permissions to other users For example: Grant SELECT on S_emp to jd1613; gives jd1613 users the right t

, remember to create a snapshot before each update.Scenario 4: Working with Views:You can create a new database and move the test_table into the library. When you need to recover, you just need to recover this very small database. The simplest way to access the data from the source database is to create a view that selects all the data for all the columns in the Test_table table. Note, however, that this method requires renaming or deleting the table of the source database before creating the vi

value no type------------------------------- -------- ----View_name not NULL VARCHAR2 (30)Text_length numberTEXT LONGsql> Define a = ' 20000101 12:01:01 '--Define local variables, if you want to use a constant like a carriage return that is included in various displays,--You can use the Define command to setSql> select a from dual;Original value 1:select a from dualNew value 1:select ' 20000101 12:01:01 ' from dual' 2000010112:01:01-----------------20000101 12:01:01Questions raised:1, the user

* fromDba_tables;analyze my_tableCompute Statistics; -dba_tables after 6 columnsSelectExtent_id,bytes fromdba_extentswhereSegment_name='CUSTOMERS' andSegment_type='TABLE'Order byextent_id;//The table uses the extent information. Segment_type='ROLLBACK'to view the spatial allocation Information column information for a rollback segment:Select distincttable_name fromUser_tab_columnswherecolumn_name='so_type_id';5. Index:　Select * fromdba_indexes;//index, including primary key indexSelect * f

appear in a WHERE clauseData queried is greater than 2% to 4%Table updated frequentlyNote: The index does not need to be used, just that we are using the name to query the time, the speed will be faster. Of course, the speed of the check is fast, the insertion speed will be slow. Because you are inserting data, you need to maintain an index.5. Querying the IndexYou can use the data dictionary view user_indexes and user_ind_columns to view the information for the indexSELECT Ic.index_name, Ic.co

not necessarily written to the database.If you want to recall these operations, you can restore them with the command ROLLBACK.B. Before running insert, DELETE and UPDATE statements, it is best to estimate the range of records that might be manipulated.It should be confined to a smaller (10,000 records) range. Otherwise, Oracle handles this thing with a large fallback segment.The program responds slowly or even loses its response. If you record more than 100,000 of these operations, you can div

Label:1. Establish a link to the database operation, SQL Server can use ADO, Oracle can use OLE DB or System.Data.OracleClient (need to add reference to use)The advantage of this scheme is simple, each write their own database operation code, the disadvantage is that two of the tables in the database can not be directly federated query, link Oracle Each machine must be installed OracleClient to use.2. Use synonyms to manipulate Oracle databases.The sp

raised:1, the user needs to perform an identical SQL operation for each table under the database user, it is troublesome to type the SQL statement over and over again.Implementation method:SQL set heading off--Suppresses output column headersSQL set feedback off-suppresses the counting feedback for the last lineLists the definitions of all synonyms under the current user and can be used to test the true existence of synonymssql> SELECT ' desc ' tname

--The independence of distributed database: the independence of distributed data means that the user doesn't have to care about how the data is segmented and stored, just care about what data he needs. --Local operation sql> sqlplus scott/tiger--remote operation sql> sqlplus scott/[emailprotected]:1521/orcl--distributed Operation Sql>-- Create a database link L2 (requires permissions);sql>--REMOTEORCL service naming (configured in Net Manager): Configure the Connection protocol, hostname (IP add

:01Questions raised:1, the user needs to perform an identical SQL operation for each table under the database user, it is troublesome to type the SQL statement again and again.Implementation method:Sql> set heading off-Suppresses output column headersSql> set feedback off-suppresses the counting feedback for the last lineLists the definitions of all synonyms under the current user and can be used to test the true existence of synonymsSelect ' Desc ' |

, because of this information, the dynamic performance view can be queried through the PL/SQL Developer tool Query: Used to record the activity information of the current routine, and when the Oracle server is started, a dynamic performance view is established when the Oracle server is stopped. The dynamic performance view is removed, and all of Oracle's dynamic performance views start with v_$, and Oracle provides synonyms for each dynamic performanc

strcat_type is static function ODCIAggregateInitialize (cs_ctx in out strcat_type) return number is begin cs_ctx: = strcat_type (null); return ODCIConst. success; end; member function ODCIAggregateIterate (self in out strcat_type, value IN varchar2) return number is begin/* string already "", "respectively */self. cat_string: = self. cat_string | "", "" | value; return ODCIConst. success; end; member function odciaggresponterminate (self IN Out strcat_type, returnValue OUT varchar2, flags IN nu

set to display more content, because the long data type is used in many data dictionary views, such:SQL> desc user_viewsThe column name can be null or not.-------------------------------------------VIEW_NAME not null VARCHAR2 (30)TEXT_LENGTH NUMBERTEXT LONGSQL> define a = ''' 20000101 12:01:01 ''' -- defines a local variable. If you want to use a constant similar to the carriage return value included in various displays,-- You can use the define command to setSQL> select a from dual;Original V

Method 1) reduce the use of public synonyms in SQL, and specify the schema name in SQL. Large OLTP systems where users log in to the database as their own user ID can benefit from explicitly qualifying the segment owner, rather than using public synonyms. this significantly CES the number of entries in the dictionary cache. for example: SELECT employee_id FROM hr. employees WHERE department_id =: dept_id; 2

Export all database objects under a user (do not export data) [sql] [lubinsu@200-168-1-2 dpump]$ exp lubinsu/lubinsu owner=lubinsu rows=n indexes=y compress=y buffer=65536 feedback=100000 file=/home/lubinsu/dpump/lubinsu.dmp log=/home/lubinsu/dpump/lubinsu.log [plain] Export: Release 10.2.0.1.0 - Production on Mon Sep 9 21:50:08 2013 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Production With the Part

times keywords or synonyms, the end of the article, also contains a key word on it.In the layout of keywords, there is also a concept of keyword density. Keyword density (Keyword Density) is also called the keyword frequency (Keyword Frequency), which is used to measure the total number of occurrences of a keyword on a webpage and the proportion of other text, generally expressed as a percentage. Relative to the total number of words in the page, the

This article mainly introduces the Python NLP introductory tutorial, Python Natural Language Processing (NLP), using Python's NLTK library. NLTK is Python's Natural language Processing toolkit, one of the most commonly used Python libraries in the NLP world. Small series feel very good, now share to everyone, also for everyone to make a reference. Follow the small series together to see it, hope to help everyone. What is NLP? In simple terms, natural language processing (NLP) is the development