Database Reference
In-Depth Information
|
+---------------------------------------------------------------------------+
Now Lena can see only that one table in the
birdwatchers
database. Here is what hap-
pens if she executes the following from her home computer:
mysql --user lena_stankoska --password='her_password_123' --host
rookery.eu \
--execute="SHOW TABLES FROM birdwatchers;"
+------------------------+
| Tables_in_birdwatchers |
+------------------------+
| bird_sightings |
+------------------------+
To give her access to more tables in the
birdwatchers
database, we couldexecute a
GRANT
statement for each table. That can be tedious with a database that has many tables,
to give her access to many of them but not all. But there's no simple way around it. I have
requested while writing this chapter that a feature be added to MariaDB to specify mul-
tiple tables in a single
GRANT
statement. So maybe one day there will be an easy way to
do it with MariaDB. For now, you can either manually enter the
GRANT
statement many
times, or you can create a short script to do it.
For example, suppose that we want to give Lena access to all of the tables in the
bird-
watchers
database, except ones with personal and sensitive information. The tables to
exclude would be the
humans
table and the two tables containing information about chil-
dren, the
birder_families
and
birding_events_children
tables. Here's how
such a shell script might look:
#!/bin/sh
mysql_connect
=
"mysql --user root -pmy_pwd"
results
=
`$mysql_connect --skip-column-names \
--execute 'SHOW TABLES FROM birdwatchers;'`
items
=
$
(
echo
$
results
|
tr
" " "\n"
)
for
item
in
$
items
do
if
[
$
item
=
'humans'
] ||
[
$
item
=
'birder_families'
] ||
[
$
item
=
'birding_events_children'
]
