db table

1. Data archivingFirst get the path: filepath= [Nssearchpathfordirectoriesindomains (NSDocumentDirectory, Nsuserdomainmask, YES). FirstObject stringbyappendingpathcomponent:@ "Person.data"]; Then set the data to be stored and store nsstring *[email

BackgroundPostgreSQL logical backup, refers to online backup database data, DDL output as SQL statements, data can be in the form of SQL statements or fixed separators (row format) output. The backup does not affect the DML operation of the Backup

I. TP5 database Operation methods1.name () methodFunction: Specifies the default data table name (without prefix)Example: Db::name (' weiba_post ');Return: DB Object2.setTable () methodFunction: Specifies the default data table name (with

MySQL single table ibd file recovery method explanation bitsCN.com Preface: With the popularization of innodb, innobackup has become a mainstream backup method. Physical backup can easily meet all database recovery requirements when creating a new

Simple use of FMDB, simple use of FMDBCommon FMDB classes: FMDatabase: A single SQLite database used to execute SQL statements.FMResultSet: Execute to query an FMDatabase result set, which is similar to the android Cursor.FMDatabaseQueue: this class

The SQLite API, which is native to iOS, is quite unfriendly to use and inconvenient when used. As a result, there is a series of libraries that encapsulate the SQLite APIs, such as Fmdb, Plausibledatabase, Sqlitepersistentobjects, Fmdb

If you are a thinkphp user, you will find it very convenient to operate the database thinkphp. Now there is a very small job in front of you, so small that there is absolutely no need to use thinkphp to finish it. But you think it's very troublesome

Use Map a number of similar classes to a single table, using specific table inheritance for classes that have many special data. Use class table inheritance for high levels, and use specific tables for low-level inheritance.

Fmdb Common classes:Fmdatabase: A single SQLite database for executing SQL statements.Fmresultset: Executes a query with a fmdatabase result set, which is similar to the cursor on Android.Fmdatabasequeue: This class is used when multiple threads are

The native SQLite API for iOS is quite unfriendly in use and inconvenient when used. As a result, a series of libraries to encapsulate the SQLite API, such as FMDB, Plausibledatabase, sqlitepersistentobjects, etc., FMDB (https://github.com/ccgus/

Copy codeThe Code is as follows:// Open discuz/api/uc. php// Locate the synlogin method (Row 1) and locate it.If ($ member = getuserbyuid ($ uid, 1 ))){Dsetcookie ('auth', authcode ("$ member [password] \ t $ member [uid]", 'encoding'), $ cookietime

Log on to discuz directly without activation. test version: discuz! X3, the theory also supports 2.5. let's test it again. The code is as follows: // Open discuz/api/uc. php// Locate the synlogin method (row 1) and locate it.If ($ member =

How to modify the synchronous login code of discuz without activation Log on to discuz directly without activation. Test version: discuz! X3, the theory also supports 2.5. Let's test it again. The Code is as follows: // Open discuz/api/uc. php //

Discuz does not activate synchronous login code modification method (discuz synchronous login ). Copy the code as follows: open discuzapiuc. at the phpsynlogin method (row 180), find if ($ membergetuserbyuid ($ uid, 1) {dsetcookie (auth, authcode ($

ThinkPHP_5: Database CURL operation, thinkphp_5curl Db: query ();Db: execute (); Db: table ()-> select (); all data, two-dimensional array. If the result does not exist, an empty array is returned.Db: table-> find (); one piece of data,

  No need to activate direct synchronous login Discuz, beta version: discuz! x3, the theory also supports 2.5, we test and use it again Code as follows://Open discuz/api/uc.php//synlogin method (180 lines), down to find if (($member =

Copy Code code as follows: Open discuz/api/uc.php Synlogin method (180 lines), find it down. if (($member = Getuserbyuid ($uid, 1))) { Dsetcookie (' auth ', Authcode ("$member [Password]\t$member[uid]", ' ENCODE '), $cookietime); } Toif

AggregateThe Query Builder also provides a variety of aggregation methods, such as,, count max min , avg and sum .Using Aggregation Methods #$users=Db::Table(' Users ')->Count();$price=Db::Table(' Orders ')->Max(' Price ');$price=Db::Table(' Orders

Log on to discuz directly without activation. Test version: discuz! X3, the theory also supports 2.5. Let's test it again. Log on to discuz directly without activation. Test version: discuz! X3, the theory also supports 2.5. Let's test it again.

Db::query ();D b::execute ();D b::table ()->select (), all data, two-dimensional array, the result does not exist when returning an empty array db::table->find (); one data, one-dimensional array, Returns Nulldb::table->value () when the result does