There are some methods on the Internet that support read-write separation, but too much copy, and some only support 2.0 version, now improve one, support 3.0 version of read-write separationThe environment for this modification is:
CodeIgniter 3.0.3
MySQL 5.5+
PHP 5.5.9
Nginx 1.1.8
Step One: Modify application/config/database.phpConfigur
database is really not the line, if I can I would like to do this database, as a product of this community.Of course, the better idea is to develop a branch product for db4o so that everyone can continue to enjoy and improve the db4o, if someone can continue to write a branch for db4o, I am willing to do my best to help. Although the official is not supported, but the official has left us a very good objec
Label:When we use other people to export the database, sometimes we will attach the database method, the other people export the database attached to our computer, then, perhaps you will encounter this problem, when attached, the prompt version of XXX, unable to open, support AAA version. What's going on here?Originall
Label:Problem1. When using entityframework to access MySQL, you will encounter some problems when using the migration to build the database or update the database. 2.entityframework.extended support for MySQL is not very complete, where modifications are not directly used need to do some processingSolution Solutions1. First to solve the first problem Readiness: D
,dreams,boy,2x
002,starleee,boy,2x
003,aa,boy,3x
004,,bb,3x
See it. I saved him in my format. Starleee.txt
And then you can call it.
This is my database.
Cool and not cool. Then you can think of it as a database. A cursor that builds a client. Use ADO method, combine RDS to use bar. The effect is good! What's the use of him? Think about it. He can use it on a free home page that doesn't
to add the defined values to the database. V. Layoutrenderer application according to the above operation and can not meet my current framework of the application, I need to direct the object, but directly ilog.info (T), and will not get the value, he will get to the null value. To do this, you need to customize the layoutrenderer. We can see that he is a generic method, so it is possible to insert objects inside. Let me tell you how to rewrite layou
Label:Groovy has a database-enabled class library:Search for SQL Groovy in Bing, find sql (groovy 2.4.3)and click to open this URL:Http://docs.groovy-lang.org/latest/html/api/groovy/sql/Sql.htmlWith Groovy's class SQL, you can connect to the database and make the data more and more censored, referred to as crudCRUD means:create, Retrieve, Update, DeleteGroovy can sup
Inspired by some posts in this forum, the program was written. The program supports the uploading of any text and binary format files; Support file form field and common form field mixed upload, support Chinese filename, support overwriting upload and file with same name, automatically modify filename, support upload m
Label:[2015] Many times, when we generate database documents, using some tools, the effect is not always ideal, not the content is not detailed, is the performance of the general. A lot of it is word, HTML. It's awkward to look at. I used to excel, so in my spare time, I simply wrote a database document generation tool for everyone to exchange learning, and the programmer to encourage each other.This tool i
Support for common database differences Comparison notes
Class
Item
Oracle
SQL Server 2005 (+)
MYSQL 4.x
OSCAR
DB2
Service
JDBC Port
1521
1433 (Patch required)
3306
2003
Field type
Character
VARCHAR2
VARCHAR
VARCHAR or TEXT
VARCHAR
VARCHAR
Numerical
Number
There are multiple libraries for MySQL in the project, and the same method may manipulate different tables in the code. Learn a variety of ways on the Internet. Probably summed up a bit. 1.mycat, Cobar and other distributed database middleware. Can be very good support, but too heavy, for our project a bit overqualified. The 2.spring Abstractroutingdatasource enables da
Because the old American does not support Chinese SQL statementsFirst: Change the field type to Nvarchar,ntextSecond: Forced conversions NUPDATE dbo. Role set rolename=n ' Normal user 'UPDATE dbo. Type set typetitle=n ' popular herd ', descrption=n ' popular herd 'where typeid=6Insert into Type (typetitle,descrption, Createtime, State, Parenttypeid) VALUES (n ' {0} ', n ' {1} ', n ' {2} ', {3},{4} If you use a stored procedure, be sure to see if the
Label:Locate the 59th line of the file app/code/core/mage/install/model/installer/db/mysql4.php: Will Public Function Supportengine () {$variables = $this->_getconnection ()->fetchpairs (' SHOW variables ');Return (!isset ($variables [' Have_innodb ']) | | $variables [' HAVE_INNODB ']! = ' YES ')? False:true;} To be replaced by: Public Function Supportengine () {$variables = $this->_getconnection ()->fetchpairs (' SHOW ENGINES '); Return (Isset ($variables [' InnoDB ']) $variables [' InnoDB ']!
] [' User ']; Modify User Name$cfg [' Servers '] [$i] [' password '] = $hosts [$i] [' Password ']; Password/* rajk–for blobstreaming */$cfg [' Servers '] [$i] [' bs_garbage_threshold '] = 50;$cfg [' Servers '] [$i] [' bs_repository_threshold '] = ' 32M ';$cfg [' Servers '] [$i] [' bs_temp_blob_timeout '] = 600;$cfg [' Servers '] [$i] [' bs_temp_log_threshold '] = ' 32M ';}Note that we use a for loop to configure information for all servers, the initial value of the loop variable $i is 1, the con
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