InnoDB, and the other 1.0.4 version of the InnoDB storage engine. If you want to use the new INNDB plugin engine, simply make the following settings in the configuration file: [mysqld]
ignore-builtin-innodb
plugin-load=innodb=ha_innodb_plugin.so;
innodb_trx=ha_innodb_plugin.so;
innodb_locks=ha_innodb_plugin.so;
innodb_cmp=ha_innodb_plugin.so;
innodb_cmp_reset=ha_innodb_plugin.so;
innodb_cmpmem=ha_innodb_plugin.so;
innodb_cmpmem_reset=ha_innodb_plugin.so;
MySQL5.5 uses InnoDB
Mysql toolkit is a small plug-in used to monitor and analyze databases. It is usually used to call perl to analyze and compare the current environment and database. It is worth learning.
Http://www.percona.com/redir/downloads/percona-toolkit/LATEST/RPM/percona-toolkit-2.2.5-2.noarch.rpm
The following software may need to be added during installation
yum install -y perl-DBD-mysql perl-IO-Socket-SSLrpm -ivh percona-toolkit-2.2.5-2.noarch.rpm
Command list
/usr/bin/pt-agent/usr/bin/pt-align/usr/
(Kcfallocatordefault, "str2", kCFStringEncodingUTF8);NSString *str2 = (__bridge_transfer NSString *) cfstr2;Depth copyShallow copy: Copy of pointerDeep copy: Copy of ObjectFull copy: objects, including objects in objects, are copies(The encoding and decoding method achieves a full copy)Summary!!!!!!Testing for immutable objects of non-container classesTesting for mutable objects of non-container classesObjects that are obtained by invoking the Copy method are immutable objectsCall the Mutableco
Here, convert the dictionary to the NSData type. One thing to be aware of, must be achieved-(ID) Initwithcoder: (nscoder *) Adecoder method and -(void) Encodewithcoder: (nscoder *) Acoder method. + (nsdata *) returndatawithdictionary: (nsdictionary*) dict {nsmutabledata* data = [[nsmutabledata alloc]init]; nskeyedarchiver* archiver = [[nskeyedarchiver alloc] Initforwritingwithmutabledata:d ATA]; [
Nsmutabledata object that holds the data after the person object is archivedNsmutabledata *activitydata=[nsmutabledata data];Create an Archive tool objectNskeyedarchiver *archiver=[[[nskeyedarchiver Alloc]initforwritingwithmutabledata:activitydata]autorelease];Start archiving activity (activity-NSData)[Archiver encodeobject:_activity forkey:@ "activity"];#warning----------When the archive is finished, be s
Local persistence of simple objects (Nsstring,nsdata,nsdictionary,nsarray and their subclasses), written to the file by WriteToFileFor local persistence of complex objects (other than simple objects, such as custom person classes), the complex object is first converted to NSData (which is called an archive) and then writetofile written to the file;First, simple object local persistence steps:Nsdictionary,nsarray type data operation steps are similar;NSData type data steps are as follows:Complex
. (required)Returns an initialization object from the data of a given unarchiver.3) CopywithzoneReturnsa new instance that ' s a copy of the receiverReturns a new instance of a copy of the message receiver.The concept of the SDK is this, the following look at the specific code of the custom class archive, in fact, and the archive of multiple objects is the same ...Archive:
Save pictures and Archives
-(Ibaction) Save: (ID) Sender {
//Prepare data
NSString *name = @"Xiao Yang is playi
can be a complete path or a path prefix, URLs starting with the value of the Allow item Allow robot access. Therefore, Allow is usually used with Disallow to Allow access to some webpages and prohibit access to all other URLs.
VII. about archiver
The archiver function of the Forum is simply a simple page for searching for indexed information.
Discuz! X2 background => Global => site function => management r
Usage of mysqltoolkit [memo] bitsCN.com
Mysql toolkit is a small plug-in used to monitor and analyze databases. it is usually used to call perl to analyze and compare the current environment and database. it is worth learning.
Http://www.percona.com/redir/downloads/percona-toolkit/LATEST/RPM/percona-toolkit-2.2.5-2.noarch.rpm
The following software may need to be added during installation
yum install -y perl-DBD-mysql perl-IO-Socket-SSLrpm -ivh percona-toolkit-2.2.5-2.noarch.rpm
Command list
Conversion of IOS nsdictionary, nsdata, and JSON Data Types
Conversion of data types is often used in IOS. The following lists conversions of common types.
1. nsdictionary type to nsdata type:
//NSDictionary -> NSData:NSDictionary *params = [NSDictionary dictionaryWithObjectsAndKeys: @"balance", @"key", @"remaining balance", @"label", @"45", @"value", @"USD", @"currencyCode
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