Tài liệu Use Fixed Database Roles pptx

... 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...

Ngày tải lên: 14/12/2013, 20:16

... 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...

Ngày tải lên: 12/12/2013, 21:16

... 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...

Ngày tải lên: 21/12/2013, 19:15

... 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...

Ngày tải lên: 26/01/2014, 11:20

... 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...

Ngày tải lên: 14/12/2013, 20:16

... 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. .....

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 14/12/2013, 15:15

... a database to an instance, use ÛN ALTER DATABASE MOUNT; . To open a database from nomount or mount state, use ÛN ALTER​DATABSE​OPEN; . To open a database in read-only mode, use ÛN ALTER DATABASE OPEN​READ​ONLY; . 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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 14/12/2013, 15:15

... 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...

Ngày tải lên: 14/12/2013, 15:15