shell脚本检索所有mysql数据库中没有primary key的表

1.mkdir -p /root/scripts/

2. cd /root/scripts/

vim query.sql,代码如下：

SELECT CONCAT(t.table_schema,".",t.table_name) as table_name
FROM information_schema.TABLES t
LEFT JOIN information_schema.TABLE_CONSTRAINTS tc
ON t.table_schema = tc.table_schema
AND t.table_name = tc.table_name
AND tc.constraint_type = 'PRIMARY KEY'
WHERE tc.constraint_name IS NULL
AND t.table_type = 'BASE TABLE'
AND t.table_schema not in ('information_schema','mysql','performance_schema','test');

vim no_primarykey.sh 代码如下：

#!/bin/bash
db_ip=192.168.56.$
db_port=$
db_user='xx'
db_password='xxxxx'
script_dir=/root/scripts
db_login="mysql -u${db_user} -p${db_password} -h${db_ip} -P${db_port}"
echo ${db_login}
for tname in `${db_login} -N -s -e "source $script_dir/query.sql"`
do
echo "=======================$tname=====================">>$script_dir/${db_port}_table.log
$db_login -N -s -e "show create table $tname \G;">>$script_dir/${db_port}_table.log
done 

3,运行脚本，将在目录下生产结果

#chmod +x no_primarykey.sh

#./no_primarykey.sh  13 3306 （其中13 为DB SERVER最后IP位 即$1, 3306 为DB PORT 即$2）

结果如下：

#cat 3306_table.log
=======================db1.t1=====================
*************************** . row ***************************
t1
CREATE TABLE `t1` (
  `deviceid` varchar() NOT NULL,
  `uid` int() DEFAULT NULL,
  `city` varchar() DEFAULT NULL,
  `ktvcity` varchar() DEFAULT NULL,
  `regsrc` int() DEFAULT NULL,
  `status` int() DEFAULT NULL,
  `clienttype` int() DEFAULT NULL,
  `pushtoken` varchar() DEFAULT NULL,
  `apntoken` varchar() DEFAULT NULL,
  KEY `uid` (`uid`),
  KEY `deviceid` (`deviceid`),
  KEY `status` (`status`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4