What does an on-clear-block Trigger fire?

1 Answer

Answer :

It fires just before SQL * forms the current block.

Related questions

Description : Can we use GO-BLOCK package in a pre-field trigger ?

Last Answer : No

Description : If you have property class attached to an item and you have same trigger written for the item . Which will fire first?

Last Answer : Item level trigger fires , If item level trigger fires, property level trigger won't fire. Triggers at the lowest level are always given the first preference. The item level trigger fires first and then the block and then the Form level trigger.

Description : Does a Before form trigger fire when the parameter form is suppressed?

Last Answer : Yes.

Description : When the form is running in DEBUG mode, If you want to examine the values of global variables and other form variables, What package procedure command you would use in your trigger text ?

Last Answer : Break. SYSTEM VARIABLES

Description : Which trigger related to mouse?

Last Answer : When-Mouse-Click When-Mouse-DoubleClick When-Mouse-Down When-Mouse-Enter When-Mouse-Leave When-Mouse-Move When-Mouse-Up

Description : What is transactional trigger property?

Last Answer : Identifies a block as transactional control block. i.e. non - database block that oracle forms should manage as transactional block.(NON- ORACLE datasource) default - FALSE.

Description : What are property classes ? Can property classes have trigger?

Last Answer : Property class inheritance is a powerful feature that allows you to quickly define objects that conform to your own interface and functionality standards. Property classes also allow you to make global ... all objects that inherit properties from that class. Yes . All type of triggers .

Description : Which trigger are created when master -detail rela?

Last Answer : master delete property * NON-ISOLATED (default) a) on check delete master b) on clear details c) on populate details * ISOLATED a) on clear details b) on populate details * CASCADE a) per-delete b) on clear details c) on populate details

Description : Can U disable database trigger? How?

Last Answer : Yes. With respect to table ALTER TABLE TABLE [[ DISABLE all_trigger ]]

Description : Can you use a commit statement within a database trigger?

Last Answer : No

Description : What is Database Trigger ?

Last Answer : A Database Trigger is procedure (set of SQL and PL/SQL statements) that is automatically executed as a result of an insert in,update to, or delete from a table.

Description : What are the uses of Database Trigger ?

Last Answer : Database triggers can be used to automatic data generation, audit data modifications, enforce complex Integrity constraints, and customize complex security authorizations.

Description : What is a database trigger ? Name some usages of database trigger ?

Last Answer : Database trigger is stored PL/SQL program unit associated with a specific database table. Usages are Audit data modifications, Log events transparently, Enforce complex business rules Derive column values automatically, Implement complex security authorizations. Maintain replicate tables.

Description : Is it possible to use Transaction control Statements such a ROLLBACK or COMMIT in Database Trigger ? Why ?

Last Answer : It is not possible. As triggers are defined for each table, if you use COMMIT of ROLLBACK in a trigger, it affects logical transaction processing.

Description : What are two virtual tables available during database trigger execution ?

Last Answer : The table columns are referred as OLD.column_name and NEW.column_name. For triggers related to INSERT only NEW.column_name values only available. For triggers related to UPDATE only OLD. ... values only available. For triggers related to DELETE only OLD.column_name values only available.

Description : What is a Trigger ?

Last Answer : A piece of logic that is executed at or triggered by a SQL *forms event.

Description : What is the difference between a Function Key Trigger and Key Function Trigger ?

Last Answer : Function key triggers are associated with individual SQL*FORMS function keys You can attach Key function triggers to 10 keys or key sequences that normally do not perform any SQL * FORMS operations. These keys referred as key F0 through key F9.

Description : Is a Key startup trigger fires as result of a operator pressing a key explicitly ?

Last Answer : No

Description : Can we use a restricted package procedure in ON-VALIDATE-FIELD Trigger ?

Last Answer : No

Description : What is the difference between an ON-VALIDATE-FIELD trigger and a trigger ?

Last Answer : On-validate-field trigger fires, when the field Validation status New or changed. Post-field-trigger whenever the control leaving form the field, it will fire.

Description : A query fetched 10 records How many times does a PRE-QUERY Trigger and POST-QUERY Trigger will get executed ?

Last Answer : PRE-QUERY fires once. POST-QUERY fires 10 times.

Description : When is PRE-QUERY trigger executed ?

Last Answer : When Execute-query or count-query Package procedures are invoked.

Description : What is the difference between ON-VALIDATE-FIELD trigger and a POST-CHANGE trigger ?

Last Answer : When you changes the Existing value to null, the On-validate field trigger will fire post change trigger will not fire. At the time of execute- query post-change trigger will fire, on-validate field trigger will not fire.

Description : At what point of report execution is the before Report trigger fired?

Last Answer : After the query is executed but before the report is executed and the records are displayed.

Description : What is WHEN-Database-record trigger?

Last Answer : Fires when oracle forms first marks a record as an insert or an update. The trigger fires as soon as oracle forms determines through validation that the record should be processed by the next post or ... the first item in the record, and after the operator attempts to navigate out of the item.

Description : What are the trigger associated with image items?

Last Answer : When-image-activated fires when the operators double clicks on an image itemwhen-image-pressed fires when an operator clicks or double clicks on an image item

Description : What is trigger associated with the timer?

Last Answer : When-timer-expired.

Description : Is the After report trigger fired if the report execution fails?

Last Answer : Yes.

Description : What is database Trigger?

Last Answer : A database trigger is a PL/SQL block that can defined to automatically execute for insert, update, and delete statements against a table. The trigger can e defined to execute once for the ... define database triggers. A database trigger can call database procedures that are also written in PL/SQL.

Description : Can distant wildfires trigger your fire alarm?

Last Answer : Yes they can, it happened in Virginia.

Description : The words in the passage that suggest there was a blast include (1) fire, heat, confusion, overturned and chaos. (2) blazed, dazed, heroic, succumbed and paralysis. (3) broken glass, cuts, bruises and sycamores. (4) rescue, quadrangle, altruism, trigger and heat.

Last Answer : (1) fire, heat, confusion, overturned and chaos

Description : Explain the difference between a data block, an extent and a segment.

Last Answer : A data block is the smallest unit of logical storage for a database object. As objects grow they take chunks of additional storage that are composed of contiguous data blocks. These groupings ... that an object takes when grouped together are considered the segment of the database object.

Description : How to define data block size?

Last Answer : A data block size is specified for each Oracle database when the database is created. A database users and allocated free database space in Oracle data blocks. Block size is specified in init.ora file and cannot be changed latter.

Description : What is data block?

Last Answer : Oracle database's data is stored in data blocks. One data block corresponds to a specific number of bytes of physical database space on disk.

Description : Can object group have a block?

Last Answer : Yes , object group can have block as well as program units.

Description : What are the Various Block Coordination Properties

Last Answer : The various Block Coordination Properties are a) Immediate Default Setting. The Detail records are shown when the Master Record are shown. b) Deffered with Auto Query Oracle Forms defer fetching the ... No Auto Query The operator must navigate to the detail block and explicitly execute a query

Description : What are the different types of Coordinations of the Master with the Detail block?

Last Answer : POPULATE_GROUP(function) POPULATE_GROUP_WITH_QUERY(function) SET_GROUP_CHAR_CELL(procedure) SET_GROUPCELL(procedure) SET_GROUP_NUMBER_CELL(procedure)

Description : What are the components of a PL/SQL block ?

Last Answer : A set of related declarations and procedural statements is called block.

Description : What are the components of a PL/SQL Block ?

Last Answer : Declarative part, Executable part and Exception part.Datatypes PL/SQL

Description : Explain how procedures and functions are called in a PL/SQL block ?

Last Answer : Function is called as part of an expression. sal := calculate_sal ('a822'); procedure is called as a PL/SQL statement calculate_bonus ('A822');

Description : Explain types of Block in forms4.0?

Last Answer : Base table Blocks. Control Blocks. 1. A base table block is one that is associated with a specific database table or view. 2. A control block is a block that is not associated with a database table. ITEMS

Description : List the system variables related in Block and Field?

Last Answer : 1. System.block_status 2. System.current_block 3. System.current_field 4. System.current_value 5. System.cursor_block 6. System.cursor_field 7. System.field_status.

Description : Committed block sometimes refer to a BASE TABLE ?

Last Answer : False

Description : What is Post-Block is a. ???

Last Answer : a. Navigational Trigger. b. Key trigger c. Transaction Trigger.

Description : Give the sequence in which triggers fired during insert operations, when the following 3 triggers are defined at the same block level ?

Last Answer : a. ON-INSERT b. POST-INSERT c. PRE-INSERT

Description : How does Space allocation table place within a block ?

Last Answer : Each block contains entries as follows Fixed block header Variable block header Row Header,row date (multiple rows may exists) PCTEREE (% of free space for row updation in future)

Description : Which parameter in Storage clause will reduce no. of rows per block?

Last Answer : PCTFREE parameter Row size also reduces no of rows per block.

Description : What are the two phases of block coordination?

Last Answer : There are two phases of block coordination: the clear phase and the population phase. During, the clear phase, Oracle Forms navigates internally to the detail block and flushes the obsolete ... with the new master record. These operations are accomplished through the execution of triggers.

Description : What database block size should I use? (for DBA)

Last Answer : Oracle recommends that your database block size match, or be multiples of your operating system block size. One can use smaller block sizes, but the performance cost is significant. Your choice should ... 8K. This is because volume manager products use 8K blocks (and this is not configurable).

Description : How to define Data Block size ?

Last Answer : A data block size is specified for each ORACLE database when the database is created. A database users and allocated free database space in ORACLE datablocks. Block size is specified in INIT.ORA file and can’t be changed latter.