... built-in fixed database roles that grant or deny permissions on
database objects. Each fixed database role adds or subtracts permissions on all the tables,
stored procedures, or other database ... within the database. A user who is added to a
fixed database role inherits all the permissions specified by the role. A person can belong
to multiple roles, if necessary.
Step...
... Passport authentication. The forms-based examples show how to
use a database to look up a user’s credentials. The passport example shows how to use
a Web service to validate authentication. You should ... variables that
are unique to a user session.
You can thus use this feature to store data such as database queries or custom objects;
and you can share these across users of your ap...
... spouses table, you’d have to throw in two outer joins:
select *
from contacts
left join desired_spouse on contacts.spouse_id =
desired_spouse.fantasy_spouse_id
left join on siblings desired_spouse.sibling_id ... make use of the outer join (also known as
the left outer join), which looks like this:
select *
from contacts
left join desired_spouse
on contacts.fantasy_spouse_id = desired_spous...
... Create Custom Database Roles
Even though the 10 built-in fixed server roles might appear to cover all contingencies, it
is possible to create custom database roles for your SQL Server databases. ... Server databases. One of the
problems with the fixed database roles is that they apply to all objects within the
database. Therefore, assigning users to the db_datareader rol...
... 8.2 Use a Single Windows Form to Update Multiple Lookup Tables
Just about every database application uses lookup tables of some sort or another, such ... each table. How do you create a Windows Form that can be used to
update most if not all of your lookup tables that are contained in your database?
Technique
Using two main controls, the ListBox ... tables of some sort or another, su...
... BY clause, because it is missing the group function.
B. The HAVING clause, because single-row functions cannot be used.
C. The HAVING clause, because the AVG function used in the SELECT clause ... func-
tion is not used in the HAVING clause, the column used must be part of the SELECT clause.
19. C. The HAVING clause can be used in a SELECT statement only if the GROUP BY clause is
present. .....
... in Oracle to define business
processes.
Database link Database links are used to communicate between databases to
share data.
You use SQL to create database objects and to interact with application ... allows a user
to interact with the database. Using these tools requires that user accounts be created in
the database and that connectivity to the database be in place across t...
... a database to an instance, use
ÛN
ALTER DATABASE MOUNT;
.
To open a database from nomount or mount state, use
ÛN
ALTERDATABSEOPEN;
.
To open a database in read-only mode, use
ÛN
ALTER DATABASE OPENREADONLY;
.
To ... statement.
Use EM Database Control to make changes.
ÛN
Using EM Database Control
To use the EM Database Control tool to modify existing database par...
... NAME
PK_CUST_ADDRESSES USER NAME PK_CUST_ADDRESSES
FK_CUST_ADDRESSES USER NAME
CK_ADD_TYPE2 USER NAME
CK_ADD_TYPE USER NAME
PK_CUSTOMER_MASTER USER NAME PK_CUSTOMER_MASTER
UQ_CUST_EMAIL USER NAME CUST_EMAIL
PK_CUST_REFS ... user objects and temporary segments.
Know how to use the EM Database Control to view tablespace information. The EM
Database Control can be used to view tablespace i...
... more
widely used
are able to manage large amount of data and large collections of users.
3
Security and Privacy for Web Databases
databases as well as unstructured and semistructured databases, ... information from these databases in the form of patterns
and trends. These data sources may be databases managed by Database Man-
agement Systems (DBMSs), or they could be data warehoused in a re...