prepare:
Prepare a table
set evn
DBUSER=root DBPASS=123 DBNAME=cyborg
TBNAME="atomic"
RDNAME="s0"
Create DB
DBNAME=atomic mysql -u$DBUSER -p$DBPASS <<< "create DATABASE $DBNAME"
Delete DB
mysql -u$DBUSER -p$DBPASS <<< "drop database $DBNAME"
Create table
mysql -u$DBUSER -p$DBPASS $DBNAME <<< "CREATE TABLE $TBNAME( id INT NOT NULL AUTO_INCREMENT, name VARCHAR(100) NOT NULL, PRIMARY KEY (id))ENGINE=InnoDB DEFAULT CHARSET=utf8;
desc $TBNAME"
Delete table
mysql -u$DBUSER -p$DBPASS $DBNAME <<< "DROP TABLE $TBNAME"
insert table
mysql -u$DBUSER -p$DBPASS $DBNAME <<< "INSERT INTO $TBNAME (name) VALUES (\"s0\");"
update table
TBNAME="atomic" RDNAME="s0" mysql -u$DBUSER -p$DBPASS $DBNAME <<<"UPDATE $TBNAME SET name='$RDNAME' WHERE id=1"
数据库锁(DB lock)