1.向数据库中插入数据

#!/bin/bash
# send data to the the table in the MYSQL database

MYSQL=`which mysql`

if [ $# -ne 2 ]
then
  echo "Usage:mtest2 emplid lastname firstname salary"
else
  #脚本变量一定要用双引号，字符串变量使用单引号
  statement=" insert into em_admin values(NULL, '$1', $2)"
  $MYSQL emwjs -u test <<EOF
  $statement
EOF
  if [ $? -eq 0 ]
  then
    echo Data successfully added
  else
    echo Problem adding data
  fi
fi

2.格式化输出数据

#!/bin/bash

#redirecting SQL output to a variable

MYSQL=`which mysql`
dbs=`$MYSQL emwjs -u test -Bse 'show tables;'`
for db in $dbs
do
  echo $db
done


#使用xml输出数据
$MYSQL emwjs -u test -X -e 'select * from em_admin'

#使用table标签输出数据
$MYSQL emwjs -u test -H -e 'select * from em_admin'

3.连接数据库并发送命令

#!/bin/bash

#连接数据库
mysql=`which mysql
`
#发送单个命令
$mysql emwjs -u test -e "show databases;"

#发送多个命令
$mysql emwjs -u test <<EOF
show tables;
select * from em_admin;
EOF