使用shell分析了一些数据有一些时间了,而且分析的数据情况也是基于历史数据,今天写了个脚本对历史的数据进行一个简单的分析,看
使用shell分析了一些数据有一些时间了,而且分析的数据情况也是基于历史数据,今天写了个脚本对历史的数据进行一个简单的分析,,看看准确率到底有多高。
这里有一个借助一个脚本12c.sh 对一些数据的排列百分比进行分析,比如今天有两个球队,主队让球一个,胜平负的概率为35%,40%,25%
表data里存放着一些样本数据,记录了球队的比赛情况。
sqlplus -s n1/n1 set linesize 150
set pages 0
set feedback off
spool check_$1.sh
select 'ksh 12c.sh'||w||' '||t||' '||l||' '||rw||' '||rt||' '||rl||' ' from data where r=-1 and startdate='$1';
spool off;
EOF
ksh check_$1.sh |tee check_$1.log
grep suggest check_$1.log |awk '{print $7" "$8" "$9" "$10" "$11" "$12" "$1" "$2" "$3" "$4" "$5" "$6}'>>filter_check.log
cat filter_check.log
function get_result
{
echo $1
sqlplus -s n1/n1 set pages 0
select case when zhu>ke+1
then rpad('big win:',20)||to_number(w+rw)||' '||'$2'||','||'$3'||','||'$4'||','||'$5'||','||'$6'||','||'$7'
when zhu=ke+1
then rpad('little win:',20)||to_number(w+rt)||' '||'$2'||','||'$3'||','||'$4'||','||'$5'||','||'$6'||','||'$7'
when zhu=ke
then rpad('tie:',20)||to_number(t+rl)||' '||'$2'||','||'$3'||','||'$4'||','||'$5'||','||'$6'||','||'$7'
when zhu=ke-1
then rpad('little lose:',20)||to_number(l+rl)||' '||'$2'||','||'$3'||','||'$4'||','||'$5'||','||'$6'||','||'$7'
when zhu
end
end from data where startdate='$1' and w=$2 and t=$3 and l=$4 and rw=$5 and rt=$6 and rl=$7 order by (zhu-ke);
EOF
}
while read line ---start ....end ....end ....end ....end ....end 在CentOS 6.4下安装Oracle 11gR2(x64) Oracle 11gR2 在VMWare虚拟机中安装步骤 Debian 下 安装 Oracle 11g XE R2 本文永久更新链接地址:
do
echo ---start
echo $line
input_params=`echo $line|awk '{print $1" "$2" "$3" "$4" "$5" "$6}'`
get_result $1 $input_params
echo ....end
echo .
done
rm check_$1.log
rm filter_check.log
rm check_$1.sh
分析结果如下,比如对前几天的比赛情况进行分析,在我不知道比赛结果的前提下。
5场比赛猜中了3场,仅供娱乐。
1.24 5.35 7.6 1.8 3.75 3.28 suggest w :82% of total 11
2014-08-26
little win: 4.99 1.24,5.35,7.6,1.8,3.75,3.28
.
---start
1.18 5.85 9.4 1.65 3.9 3.75 suggest w :71% of total 17
2014-08-26
tie: 9.6 1.18,5.85,9.4,1.65,3.9,3.75
.
---start
1.43 4.15 5.42 2.42 3.4 2.38 suggest w :65% of total 97
2014-08-26
little lose: 7.8 1.43,4.15,5.42,2.42,3.4,2.38
.
---start
2.1 2.95 3.25 4.7 3.6 1.57 suggest rl :68% of total 50
2014-08-26
tie: 4.52 2.1,2.95,3.25,4.7,3.6,1.57
.
---start
1.1 6.75 15 1.45 4.2 4.95 suggest w :80% of total 5
2014-08-26
big win: 2.55 1.1,6.75,15,1.45,4.2,4.95

InnoDBBufferPool reduces disk I/O by caching data and indexing pages, improving database performance. Its working principle includes: 1. Data reading: Read data from BufferPool; 2. Data writing: After modifying the data, write to BufferPool and refresh it to disk regularly; 3. Cache management: Use the LRU algorithm to manage cache pages; 4. Reading mechanism: Load adjacent data pages in advance. By sizing the BufferPool and using multiple instances, database performance can be optimized.

Compared with other programming languages, MySQL is mainly used to store and manage data, while other languages such as Python, Java, and C are used for logical processing and application development. MySQL is known for its high performance, scalability and cross-platform support, suitable for data management needs, while other languages have advantages in their respective fields such as data analytics, enterprise applications, and system programming.

MySQL is worth learning because it is a powerful open source database management system suitable for data storage, management and analysis. 1) MySQL is a relational database that uses SQL to operate data and is suitable for structured data management. 2) The SQL language is the key to interacting with MySQL and supports CRUD operations. 3) The working principle of MySQL includes client/server architecture, storage engine and query optimizer. 4) Basic usage includes creating databases and tables, and advanced usage involves joining tables using JOIN. 5) Common errors include syntax errors and permission issues, and debugging skills include checking syntax and using EXPLAIN commands. 6) Performance optimization involves the use of indexes, optimization of SQL statements and regular maintenance of databases.

MySQL is suitable for beginners to learn database skills. 1. Install MySQL server and client tools. 2. Understand basic SQL queries, such as SELECT. 3. Master data operations: create tables, insert, update, and delete data. 4. Learn advanced skills: subquery and window functions. 5. Debugging and optimization: Check syntax, use indexes, avoid SELECT*, and use LIMIT.

MySQL efficiently manages structured data through table structure and SQL query, and implements inter-table relationships through foreign keys. 1. Define the data format and type when creating a table. 2. Use foreign keys to establish relationships between tables. 3. Improve performance through indexing and query optimization. 4. Regularly backup and monitor databases to ensure data security and performance optimization.

MySQL is an open source relational database management system that is widely used in Web development. Its key features include: 1. Supports multiple storage engines, such as InnoDB and MyISAM, suitable for different scenarios; 2. Provides master-slave replication functions to facilitate load balancing and data backup; 3. Improve query efficiency through query optimization and index use.

SQL is used to interact with MySQL database to realize data addition, deletion, modification, inspection and database design. 1) SQL performs data operations through SELECT, INSERT, UPDATE, DELETE statements; 2) Use CREATE, ALTER, DROP statements for database design and management; 3) Complex queries and data analysis are implemented through SQL to improve business decision-making efficiency.

The basic operations of MySQL include creating databases, tables, and using SQL to perform CRUD operations on data. 1. Create a database: CREATEDATABASEmy_first_db; 2. Create a table: CREATETABLEbooks(idINTAUTO_INCREMENTPRIMARYKEY, titleVARCHAR(100)NOTNULL, authorVARCHAR(100)NOTNULL, published_yearINT); 3. Insert data: INSERTINTObooks(title, author, published_year)VA


Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

AI Hentai Generator
Generate AI Hentai for free.

Hot Article

Hot Tools

Dreamweaver Mac version
Visual web development tools

mPDF
mPDF is a PHP library that can generate PDF files from UTF-8 encoded HTML. The original author, Ian Back, wrote mPDF to output PDF files "on the fly" from his website and handle different languages. It is slower than original scripts like HTML2FPDF and produces larger files when using Unicode fonts, but supports CSS styles etc. and has a lot of enhancements. Supports almost all languages, including RTL (Arabic and Hebrew) and CJK (Chinese, Japanese and Korean). Supports nested block-level elements (such as P, DIV),

SublimeText3 Chinese version
Chinese version, very easy to use

WebStorm Mac version
Useful JavaScript development tools

MinGW - Minimalist GNU for Windows
This project is in the process of being migrated to osdn.net/projects/mingw, you can continue to follow us there. MinGW: A native Windows port of the GNU Compiler Collection (GCC), freely distributable import libraries and header files for building native Windows applications; includes extensions to the MSVC runtime to support C99 functionality. All MinGW software can run on 64-bit Windows platforms.