jswipe faq

. 038 The concepts of unique indexes and bitmap indexes, which are categorized by Oracle indexes. The Oracle index has a B-tree index, a bitmap index, a function index, a cluster index , and so on. 　　A unique index is also a type of B-tree index that requires the indexed field values not to be duplicated. Created using the B-tree algorithm at the time of creation. 　　Instead of storing the index segment as a unique index (indexed field value, record rowID), the bitmap index creates a bitmap for

Tags: mysql FAQ does not startYesterday in the group to see a new classmate still ask MySQL can not start the problem, so summed up a few common situation, right when the popular post, the birds consciously flew over.Issue 1: Directory and file permissions are not set correctlyMySQL $datadir directory, and its subordinate directory, file permissions property is set incorrectly, resulting in MySQL unable to read and write files, unable to start.Error m

computer room, so the software installation operation is generally by remote to operate, when we use Putty remote connection to the Linux server, the default is SSH connection, does not have X Window function, unable to open the Oracle graphical installation interface, So you need to configure the Xming tool to turn on the graphical interface function.Download the Xming tool, use the default installation directly, and then locate Xming->xlaunch startup Xming in the Start menuGenerally do not ne

Tags: file data database SQL MySQL storage R memory recordOneQ: If there is a table, there is a field ID of the self-increment primary key, when the table has been inserted 10 data, deleted the ID of 8,9,10 data, and then restart the MySQL, and then insert a data, then this data ID value should be how much, is 8, or 11?A: If the table type is MyISAM, then it is 11. If the table is of type InnoDB, the ID is 8.This is because the maximum ID records stored by the two types of storage engines are di

Tags: style blog http color OS ar file Data 2014Software bad environment: SQL Server R2 Issue 1: Database source files copied from other computers use the current computer (SQL Server) to attach the database to the following error: Workaround: Open Start → program →microsoft SQL Server 2005→ Configuration tool →sql Server Configuration Manager - SQL Server Service ->sql Server (MSSQLSERVER), properties--built-in account->local system Issue 2

not the same trend. This is the problem point, take the first picture for example, we see the RT high, in general, RT soaring High usually for the following reasons: Rotten SQL line above 90% basically that's the reason Hardware problems have appeared on the line, but not much File system Bug MySQL Bug Network problems About rotten SQL In fact there are all kinds of, you can go to the Internet to search a lot of, here is not tired, after the time, I may write; My

Microsoft. NET Framework FAQ Microsoft Corporation July 2001 Summary:This article contains common questions about Microsoft. NET and the Microsoft. NET Framework. (15 page printed) Content Conceptual issues Run-time Library Technical Issues Terms Assembly Application Deployment and Isolation Garbage collection Remote processing Interoperability Security Conceptual Issues What is a. NET framework? Run-time Library Technical issues Terms

://cwiki.apache.org/confluence/display/maven/dependencyresolutionexceptionCause of errorThis may be CAs 5.1.9 a bug, the background server unexpectedly did not Cas-server-support-pm-jdbc:jar 5.1.9 version caused.The workaround is also simple, using the current version of CAs, the most recent stable version I wrote this time was 5.2.5. To modify the version number of a pom.xml Properties> cas.version>5.2.5cas.version> springboot.version>1.5.3.RELEASEspringboot.version> App

information about the database and uses it to describe the data. select * from dictionary;1.10.Data dictionary Common itemsQuery all table spaces:select * from Dba_tablespaces; SELECT * from All_tablespaces;Query All users:select * from All_tables; SELECT * from Dba_tables;query all sequences:select * from All_sequences; SELECT * from Dba_sequences;query all triggers:select * from All_triggers; SELECT * from Dba_triggers;1.11.View Database error interpretation informationSwitch to Oracle User:o

Don't know about Windows Live Messenger yet? You're too old for that. Windows Live Messenger is the previous MSN Messenger. Since version 8.0, it's called Windows Live Messenger. It's still in beta, and it's constantly releasing beta releases. Now let's look at the FAQ and answers from the Windows Live Messenger official. This picture comes from the Internet What is a voice call? How does it work? This feature allows users who have registered Win

administrators can enable ' Ad Hoc distributed Queries ' by using sp_configure. For more information about enabling ' Ad Hoc distributed Queries ', see "surface Area Configurator" in SQL Server Books Online. WORKAROUND:--Enable AD Hoc distributed Queries: New query, input exec sp_configure ' show advanced options ', 1 Reconfigure exec sp_configure ' Ad Hoc distributed Queries ', 1 Reconfigure --Close ad Hoc distributed Queries after use is complete: exec sp_configure ' Ad Hoc distributed Queri

-errors = 1062 (for repairing master and slave)error_code:1053Phenomenon140524 9:48:36 [ERROR] slave:error ' Server shutdown in progress ' on query. Default database: ' Crm_sale '. Query: ' Load data INFILE '/home/mysql/mysql/tmp/sql_load-3367957599-1103609990-72.data ' IGNORE into table XXX character Set UTF8 ', error_code:1053ReasonBefore mysql-5535,mysql-5615, there was this bug, an explicit kill query would cause 1053:server shutdown progress Error and interrupt the SQL thread."Solution"Dire

If you encounter mysqldump:unknown option '--no-beep ', you can add--no-dafaultsNo semicolon required at end of commandMysqldump--no-defaults-uroot- p--databases S8 > S888888.sql1. Export all databasesThis command exports all databases, including the system databaseMysqldump-uroot-proot--all-databases >/tmp/all.sql2. Export all data for DB1, DB2 two databasesMysqldump-uroot-proot--databases db1 DB2 >/tmp/user.sql3. Export only table structure does not export data,--no-dataMysqldump-uroot-proot-

,USERNAME user name of the login system,SCHEMANAME,B.cpu_time spends Cpu time,STATUS,SQL executed by B.sql_textFrom V$session ALeft JOIN v$sql B on a.sql_address = b.addressand A.sql_hash_value = B.hash_valueORDER by B.cpu_time DESC--Identify Oracle's current locked objectSELECT l.session_id SID,s.serial#,L.locked_mode lock mode,L.oracle_username logged in user,L.os_user_name Login Machine User name,S.machine machine Name,S.terminal End user Name,O.object_name is locked object name,S.logon_time

poolInnoDB:Error:log file./ib_logfile0 is of different size 0 5242880 bytesInnodb:than specified in the. cnf file 0 33554432 bytes!110216 9:48:41 [ERROR] Plugin ' InnoDB ' init function returned ERROR.110216 9:48:41 [ERROR] Plugin ' InnoDB ' registration as a STORAGE ENGINE failed.Workaround: mysql -uroot -p... -e"SET GLOBAL innodb_fast_shutdown = 0" service mysql stop rm -f /var/lib/mysql/ib_logfile[01] service mysql start See some articles on the internet, said it is best to add

collection of all previous files. Relay-log itself the event record is the time of the main library, but the Previous_gtids_log_event event at the beginning of relay LOG is generated on the slave side and the time is slave. Therefore, this time cannot be calculated last_master_timestamp . The fix is to write the Previous_gtids_log_event event in relay log that the token is relay log, and in the statistics last_master_timestamp , the event that is relay generated is ignored. if(is_relay_log) pre

connection to the Linux server, the default is SSH connection, does not have X Window function, unable to open the Oracle graphical installation interface, So you need to configure the Xming tool to turn on the graphical interface function.Download the Xming tool, use the default installation directly, and then locate Xming->xlaunch startup Xming in the Start menuGenerally do not need to modify, according to the default configuration, directly click NextLeave the default selection and continue

This document is an unofficial version of the vsftpd 2.0.3 faq. Official faq: ftp://vsftpd.beasts.org/users/cevans/untar/vsftpd-2.0.3/FAQ Now the latest version is vsftpd 2.3.2, corresponding faq address: ftp://vsftpd.beasts.org/users/cevans/untar/vsftpd-2.3.2/FAQ Q1) Can I

Swift Tutorial _swift FAQ (0001) _coredata:warning:unable to load class named ' xxx ' for entity ' xxx 'Swift Tutorial _swift FAQ (0002) _ Perfect handling of Sourcekitservice crashed exceptions. Most of the 6.1.1 have been repairedSwift Tutorials _swift Frequently asked questions (0003) _storyboard changes do not take effectSwift tutorial _swift Frequently asked questions (0004) _swift code does not active

0.0-introduction-how to use this FAQ This document is divided into several parts. First, sections 0th and 1st introduce what VI is, and section 2nd introduces many newSome people who do not have much experience with VI often ask these questions, including "command mode and insertDifferences between modes and problems such as "how to copy and paste". Section 3rd is intended for intermediate users of VI.The question "how do I find and replace" begins a