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Vbx CONTROL provide a SIMPLE method of building and enhancing user interfaces. The controls can use to obtain user inputs and display program outputs. vbx control where originally develop as extensions for the ms VISUAL basic ENVIRONMENTS and include such items as SLIDERS, rides and knobs.

Vbx control provide a simple method of building and enhancing user interfaces. The controls can use to obtain user inputs and display program outputs. vbx control where originally develop as extensions for the ms visual basic environments and include such items as sliders, rides and knobs.

VIEW by STRUCTURE.

view by structure.

VISUAL attributes are the font, color, PATTERN proprieties that you set for FORM and menu objects that appear in your application INTERFACE.

Visual attributes are the font, color, pattern proprieties that you set for form and menu objects that appear in your application interface.

When confine MODE is on, an OBJECT cannot be moved outside its PARENT in the LAYOUT.

When confine mode is on, an object cannot be moved outside its parent in the layout.

When flex mode is on, reports automatically resizes the PARENT when the CHILD is RESIZED.

When flex mode is on, reports automatically resizes the parent when the child is resized.

When LOV for Validation is set to True, ORACLE Forms compares the CURRENT value of the text ITEM to the values in the first column displayed in the LOV. Whenever the validation event OCCURS. If the value in the text item matches one of the values in the first column of the LOV, validation succeeds, the LOV is not displayed, and PROCESSING continues normally. If the value in the text item does not match one of the values in the first column of the LOV, Oracle Forms displays the LOV and uses the text item value as the search criteria to automatically reduce the list.

When LOV for Validation is set to True, Oracle Forms compares the current value of the text item to the values in the first column displayed in the LOV. Whenever the validation event occurs. If the value in the text item matches one of the values in the first column of the LOV, validation succeeds, the LOV is not displayed, and processing continues normally. If the value in the text item does not match one of the values in the first column of the LOV, Oracle Forms displays the LOV and uses the text item value as the search criteria to automatically reduce the list.

When one form INVOKES ANOTHER form by executing new_form oracle form exits the first form and releases its MEMORY before loading the new form calling new form completely replace the first with the SECOND. If there are changes pending in the first form, the operator will be prompted to save them before the new form is loaded.

When one form invokes another form by executing new_form oracle form exits the first form and releases its memory before loading the new form calling new form completely replace the first with the second. If there are changes pending in the first form, the operator will be prompted to save them before the new form is loaded.

when one form invokes ANOTHER form by EXECUTING open_form the FIRST form remains displayed, and operators can NAVIGATE between the forms as desired. when one form invokes another form by executing call_form, the called form is modal with RESPECT to the calling form. That is, any windows that belong to the calling form are disabled, and operators cannot navigate to them until they first exit the called form.

when one form invokes another form by executing open_form the first form remains displayed, and operators can navigate between the forms as desired. when one form invokes another form by executing call_form, the called form is modal with respect to the calling form. That is, any windows that belong to the calling form are disabled, and operators cannot navigate to them until they first exit the called form.

When the value of a data parameter being passed to a CALLED product is ALWAYS the name of the record GROUP defined in the current form. Data parameters are USED to pass data to PRODUTS invoked with the run_product built-in subprogram.

When the value of a data parameter being passed to a called product is always the name of the record group defined in the current form. Data parameters are used to pass data to produts invoked with the run_product built-in subprogram.

• When_window_activated
• When_window_closed
• When_window_deactivated
• When_window_resized

WITHIN this triggers, you can EXAMINE the built in system variable system. event_window to DETERMINE the name of the window for which the TRIGGER fired.

Within this triggers, you can examine the built in system variable system. event_window to determine the name of the window for which the trigger fired.

When-IMAGE-activated FIRES when the operators DOUBLE clicks on an image item when-image pressed fires when an OPERATOR clicks or double clicks on an image item.

When-image-activated fires when the operators double clicks on an image item when-image pressed fires when an operator clicks or double clicks on an image item.

When-timer-expired.

When-timer-expired.

Where START with having.

Where start with having.

While both REPORTS 2.0 and 2.5 CREATE the parameter, REPORT 2.5 gives a message that a BIND parameter has been CREATED.

While both reports 2.0 and 2.5 create the parameter, report 2.5 gives a message that a bind parameter has been created.

Yes.

Yes.

• DBA_FREE_SPACE.
• DBA_SEGMENTS.
• DBA_DATA_FILES.

VIEWS do not CONTAIN or STORE DATA.

Views do not contain or store data.

The RELATED COLUMNS of the TABLES in a cluster are called the cluster KEY.

The related columns of the tables in a cluster are called the cluster key.

Clusters are groups of one or more tables physically stores together to SHARE common COLUMNS and are OFTEN USED together.

Clusters are groups of one or more tables physically stores together to share common columns and are often used together.

Due to INSUFFICIENT shared POOL size.Monitor the ratio of the reloads takes PLACE while executing SQL statements. If the ratio is greater than 1 then INCREASE the SHARED_POOL_SIZE.

Due to insufficient shared pool size.Monitor the ratio of the reloads takes place while executing SQL statements. If the ratio is greater than 1 then increase the SHARED_POOL_SIZE.

DATA segment are the physical AREAS within a database BLOCK in which the data associated with tables and CLUSTERS are stored.

Data segment are the physical areas within a database block in which the data associated with tables and clusters are stored.

It is AREA in memory that is used by a single ORACLE user PROCESS.

It is area in memory that is used by a single Oracle user process.

The System Global Area in an Oracle DATABASE is the area in memory to facilitate the transfer of INFORMATION between users. It HOLDS the most recently requested STRUCTURAL information between users. It holds the most recently requested structural information about the database. The structure is database buffers, dictionary CACHE, redo log buffer and shared pool area.

The System Global Area in an Oracle database is the area in memory to facilitate the transfer of information between users. It holds the most recently requested structural information between users. It holds the most recently requested structural information about the database. The structure is database buffers, dictionary cache, redo log buffer and shared pool area.

Yes.

Yes.

Yes.

Yes.

Yes. Each WINDOW you CREATE must have ATLEAST ONE content canvas view assigned to it. You can also create a window that has manipulated content canvas view. At run time only one of the content canvas VIEWS assign to a window is displayed at a time.

Yes. Each window you create must have atleast one content canvas view assigned to it. You can also create a window that has manipulated content canvas view. At run time only one of the content canvas views assign to a window is displayed at a time.

You can pass PARAMETER VALUES to a form when an APPLICATION EXECUTES the call_form, New_form, Open_form or Run_product.

You can pass parameter values to a form when an application executes the call_form, New_form, Open_form or Run_product.

• A simple snapshot is based on a query that does not contains GROUP BY CLAUSES, CONNECT BY clauses, JOINs, sub-query or snashot of OPERATIONS.
• A complex snapshots contain ATLEAST any one of the above.

• Replication of DATA in DISTRIBUTED ENVIRONMENT.
• USING SNAPSHOTS to replicate data.
• Using remote procedure calls.

A distributed database is a network of DATABASES MANAGED by multiple database servers that appears to a user as single logical database. The data of all databases in the distributed database can be SIMULTANEOUSLY ACCESSED and MODIFIED.

A distributed database is a network of databases managed by multiple database servers that appears to a user as single logical database. The data of all databases in the distributed database can be simultaneously accessed and modified.

A SNAPSHOT log is a table in the master database that is ASSOCIATED with the master table. ORACLE USES a snapshot log to TRACK the rows that have been updated in the master table. Snapshot logs are USED in updating the snapshots based on the master table.

A snapshot log is a table in the master database that is associated with the master table. ORACLE uses a snapshot log to track the rows that have been updated in the master table. Snapshot logs are used in updating the snapshots based on the master table.

COMPLETE : Tables are completely regenerated using the snapshots query and the MASTER tables every time the SNAPSHOT referenced.

FAST : If SIMPLE snapshot used then a snapshot log can be used to send the changes to the snapshot tables.

FORCE : Default VALUE. If possible it performs a FAST refresh. Otherwise it will perform a complete refresh.

COMPLETE : Tables are completely regenerated using the snapshots query and the master tables every time the snapshot referenced.

FAST : If simple snapshot used then a snapshot log can be used to send the changes to the snapshot tables.

FORCE : Default value. If possible it performs a FAST refresh. Otherwise it will perform a complete refresh.

Database on other servers can be UPDATED and those transactions can be grouped together with OTHERS in a logical unit.Database USES a two phase commit.

Database on other servers can be updated and those transactions can be grouped together with others in a logical unit.Database uses a two phase commit.

It is a table that maintains a record of modifications to the master table in a SNAPSHOT. It is STORED in the same database as master table and is only AVAILABLE for SIMPLE SNAPSHOTS. It should be created before creating snapshots.

It is a table that maintains a record of modifications to the master table in a snapshot. It is stored in the same database as master table and is only available for simple snapshots. It should be created before creating snapshots.

Prepare phase - The GLOBAL COORDINATOR (initiating node) ask a participants to prepare (to PROMISE to commit or rollback the transaction, even if there is a failure) Commit - Phase - If all participants respond to the coordinator that they are prepared, the coordinator asks all NODES to commit the transaction, if all participants cannot prepare, the coordinator asks all nodes to ROLL back the transaction.

Prepare phase - The global coordinator (initiating node) ask a participants to prepare (to promise to commit or rollback the transaction, even if there is a failure) Commit - Phase - If all participants respond to the coordinator that they are prepared, the coordinator asks all nodes to commit the transaction, if all participants cannot prepare, the coordinator asks all nodes to roll back the transaction.

SIMPLE and COMPLEX.

Simple and Complex.

Snapshot is an OBJECT USED to dynamically REPLICATE data between distribute database at specified TIME intervals. In ver 7.0 they are read only.

Snapshot is an object used to dynamically replicate data between distribute database at specified time intervals. In ver 7.0 they are read only.

SNAPSHOTS and SNAPSHOT LOGS.

Snapshots and SNAPSHOT LOGs.

SNAPSHOTS are read-only copies of a master table located on a REMOTE NODE which is PERIODICALLY refreshed to reflect changes made to the master table.

Snapshots are read-only copies of a master table located on a remote node which is periodically refreshed to reflect changes made to the master table.

SQL *NET is ORACLE's MECHANISM for interfacing with the COMMUNICATION protocols USED by the networks that facilitate distributed processing and distributed databases. It is used in Clint-Server and Server-Server communications.

SQL *NET is ORACLE's mechanism for interfacing with the communication protocols used by the networks that facilitate distributed processing and distributed databases. It is used in Clint-Server and Server-Server communications.

Time the references to occur when master TABLES are not in use. Peform the reference the manually immdiately LOCKING the master tables. We can join tables in snopshots by CREATING a complex SNAPSHOTS that will BASED on the master tables.

Time the references to occur when master tables are not in use. Peform the reference the manually immdiately locking the master tables. We can join tables in snopshots by creating a complex snapshots that will based on the master tables.

Two-phase COMMIT is mechanism that guarantees a distributed transaction either commits on all INVOLVED nodes or rolls back on all involved nodes to maintain DATA consistency ACROSS the global distributed database. It has two phase, a Prepare Phase and a Commit Phase.

Two-phase commit is mechanism that guarantees a distributed transaction either commits on all involved nodes or rolls back on all involved nodes to maintain data consistency across the global distributed database. It has two phase, a Prepare Phase and a Commit Phase.

Updating or Inserting RECORDS in remote database through database triggers. It MAY fail if remote database is having any PROBLEM.

Updating or Inserting records in remote database through database triggers. It may fail if remote database is having any problem.

We must be able to CREATE a after row trigger on table (i.e., it should be not be ALREADY available) After giving table PRIVILEGES. We cannot specify snapshot log name because ORACLE uses the name of the master table in the name of the database OBJECTS that support its snapshot log. The master table name should be less than or equal to 23 characters. (The table name created will be MLOGS_tablename, and trigger name will be TLOGS name).

We must be able to create a after row trigger on table (i.e., it should be not be already available) After giving table privileges. We cannot specify snapshot log name because oracle uses the name of the master table in the name of the database objects that support its snapshot log. The master table name should be less than or equal to 23 characters. (The table name created will be MLOGS_tablename, and trigger name will be TLOGS name).

An user ACCOUNT is not a PHYSICAL structure in Database but it is having important relationship to the OBJECTS in the database and will be having CERTAIN privileges.

An user account is not a physical structure in Database but it is having important relationship to the objects in the database and will be having certain privileges.

• DBA_FREE_SPACE.
• DBA_SEGMENTS.
• DBA_DATA_FILES.

QUERY V$fixed_view_definition.

EXAMPLE:

Query v$fixed_view_definition.

Example:

Don't GRANT user ACCESS directly to tables within the application. INSTEAD grant the ABILITY to access the procedures that access the tables. When procedure executed it will execute the privilege of procedures owner. Users cannot access tables except via the procedure.

Don't grant user access directly to tables within the application. Instead grant the ability to access the procedures that access the tables. When procedure executed it will execute the privilege of procedures owner. Users cannot access tables except via the procedure.

Each database user is assigned a PROFILE that specifies limitations on various SYSTEM RESOURCES AVAILABLE to the user.

Each database user is assigned a Profile that specifies limitations on various system resources available to the user.

Object AUDITING is the auditing of accesses to SPECIFIC SCHEMA OBJECTS without regard to USER.

Object auditing is the auditing of accesses to specific schema objects without regard to user.