Linux下自动向MySQL中录入数据的脚本
#!/bin/sh#define the strcture of tableTABLE=quot;(username char(50) not null,password char(20) not null,uid char(10) no
#!/bin/sh
#define the strcture of table
TABLE="(username char(50) not null,password char(20) not null,uid char(10) not null,gid char(10) not null,maildir char(100) not null,domain char(20) not null,active char(1) default '1');"
#create database and table
#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
for type in database table;do
printf "Please input the $type name you would like to create:[postfix]"
while read data;do
if [ ! -z ${data} ]; then
if [ "$type" = "database" ];then
database=$data
elif [ "$type" = "table" ];then
table=$data
fi
break
fi
printf "Please input the database name you would like to create:[postfix]"
done
done
#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#input the data per user
#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
for ((i=1;;i++));do
printf "Do you want to input the data per user:[yes,no]"
while read yes_no;do
if [ "$yes_no" != "yes" ];then break 2;fi
echo "Please input the data of NO.$i user:"
for col in username password uid gid maildir domain active;do
printf "$col of NO.$i :" && read ${col}[${i}]
done
break
done
done
#output the data you input
#+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
echo ""
echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++"
echo "Please make sure the data you input:"
echo "Database: $database"
echo "Table : $table"
echo ""
echo "Show the recodes you input:"
echo "username password uid gid maildir domain active"
for ((n=1;n echo "${username[$n]} ${password[$n]} ${uid[$n]} ${gid[$n]} ${maildir[$n]} ${domain[$n]} ${active[$n]}"
done
#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#execute the sql to input data to mysql
#++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
echo ""
echo "Executing the SQL to input data to mysql......"
printf "Creating database $database...... " && \
mysql -u root -h --password=RedHat -e "create database if not exists ${database}" && \
echo -e "\033[32mOK\033[m"
printf "Creating table $table...... " && \
mysql -u root -h --password=redhat $database -e "create table if not exists ${table}$TABLE" && \
echo -e "\033[32mOK\033[m"
#insert recode to mysql
for ((n=1;n printf "Insert NO.$n recode...... " && \
mysql -u root -h --password=redhat $database -e "insert into $table values ('${username[$n]}',encrypt('${password[$n]}'),'${uid[$n]}','${gid[$n]}','${maildir[$n]}','${domain[$n]}','${active[$n]}')" && \
echo -e "\033[32mOK\033[m"
done
#show all the recode
echo ""
echo "Show all the recods in the mysql:"
mysql -u root -h --password=redhat $database -e "select * from $table"

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

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics



InnoDB's full-text search capabilities are very powerful, which can significantly improve database query efficiency and ability to process large amounts of text data. 1) InnoDB implements full-text search through inverted indexing, supporting basic and advanced search queries. 2) Use MATCH and AGAINST keywords to search, support Boolean mode and phrase search. 3) Optimization methods include using word segmentation technology, periodic rebuilding of indexes and adjusting cache size to improve performance and accuracy.

The article discusses using MySQL's ALTER TABLE statement to modify tables, including adding/dropping columns, renaming tables/columns, and changing column data types.

Full table scanning may be faster in MySQL than using indexes. Specific cases include: 1) the data volume is small; 2) when the query returns a large amount of data; 3) when the index column is not highly selective; 4) when the complex query. By analyzing query plans, optimizing indexes, avoiding over-index and regularly maintaining tables, you can make the best choices in practical applications.

Yes, MySQL can be installed on Windows 7, and although Microsoft has stopped supporting Windows 7, MySQL is still compatible with it. However, the following points should be noted during the installation process: Download the MySQL installer for Windows. Select the appropriate version of MySQL (community or enterprise). Select the appropriate installation directory and character set during the installation process. Set the root user password and keep it properly. Connect to the database for testing. Note the compatibility and security issues on Windows 7, and it is recommended to upgrade to a supported operating system.

The difference between clustered index and non-clustered index is: 1. Clustered index stores data rows in the index structure, which is suitable for querying by primary key and range. 2. The non-clustered index stores index key values and pointers to data rows, and is suitable for non-primary key column queries.

Article discusses popular MySQL GUI tools like MySQL Workbench and phpMyAdmin, comparing their features and suitability for beginners and advanced users.[159 characters]

Article discusses strategies for handling large datasets in MySQL, including partitioning, sharding, indexing, and query optimization.

The article discusses dropping tables in MySQL using the DROP TABLE statement, emphasizing precautions and risks. It highlights that the action is irreversible without backups, detailing recovery methods and potential production environment hazards.
