shell實現對mysql數據庫的增、刪、改、查操做

shell實現對mysql數據庫的增、刪、改、查操做

#!/bin/bash　
 #數據庫信息
HOSTNAME="192.168.111.84"                                          
PORT="3306"
USERNAME="root"
PASSWORD=""
DBNAME="test_db_test"                                                      
TABLENAME="test_table_test"                                           
#也能夠寫 HOSTNAME="localhost"，端口號 PORT能夠不設定

 #建立數據庫
create_db_sql="create database IF NOT EXISTS ${DBNAME}"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} -e "${create_db_sql}"

注意：-p${PASSWORD}中間不能有空格

#建立表
create_table_sql="create table IF NOT EXISTS ${TABLENAME} (  name varchar(20), id int(11) default 0 )"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD}  -D ${DBNAME} -e "${create_db_sql}"

#插入數據
insert_sql="insert into ${TABLENAME} values('billchen',2)"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${insert_sql}"

#查詢
select_sql="select * from ${TABLENAME}"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${select_sql}"

#更新數據
update_sql="update ${TABLENAME} set id=3"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e "${update_sql}"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${select_sql}"

#刪除數據
delete_sql="delete from ${TABLENAME}"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${delete_sql}"
mysql -h${HOSTNAME}  -P${PORT}  -u${USERNAME} -p${PASSWORD} ${DBNAME} -e  "${select_sql}"