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What is statement level trigger?

Anonymous

∙ 15y ago

Updated: 8/17/2019

A statement trigger is a trigger which is fired once on behalf of the triggering statement, independent of the number of rows the triggering statement affects.

Wiki User

∙ 15y ago

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Related Questions

What are row level and statement level triggers?

The FOR EACH ROW option determines whether the trigger is a row trigger or a statement trigger. If you specify FOR EACH ROW, then the trigger fires once for each row of the table that is affected by the triggering statement. The absence of the FOR EACH ROW option indicates that the trigger fires only once for each applicable statement, but not separately for each row affected by the statement.

How many trigger can have on one table?

In Oracle Database, a table can have multiple triggers associated with it. However, each trigger can be of a specific type: row-level trigger (BEFORE or AFTER each row affected) or statement-level trigger (BEFORE or AFTER each SQL statement executed). It is important to manage triggers carefully to avoid any performance issues or conflicts.

Difference row level and statement level triggers?

Row-level triggers are executed for each row affected by the triggering event, whereas statement-level triggers are executed once for each triggering event regardless of the number of rows affected. Row-level triggers have access to the specific row data being modified, making them useful for enforcing constraints or triggering actions based on individual row changes. Statement-level triggers are more efficient for bulk operations or actions that do not need to consider individual row data.

What is a trigger in dbms?

Trigger is a statement that is automatically executed by the system as a side effect of a modification to the database. Several existing systems have their own non standard trigger functions. For a trigger we need to specify the condition under which the trigger is executed.

Difference between level trigger and edge trigger filp fliop?

in level trigger mode, the input signal is sampled when the clock signal is either high or low whereas in edge trigger mode the input signal is sampled at rising or at the falling edge. lever triggering is sensitive to glitches whereas edge trigger is non sensitive.. example: latch for level trigger and flip-flop for edge trigger

What is pressure trigger?

A pressure trigger is a trigger for initiating assisted ventilation. A pressure trigger consists of a measuring pressure and starting assisted ventilation when the pressure reaches the desired level.

How do trigger the switch on plankton's fun house level 6?

Just try to push blocks into the trigger{

How the unstable waves stables in oscilloscope?

Unstable waves can be stabilized on an oscilloscope by adjusting the trigger level and trigger slope settings. By setting the trigger level to a specific voltage and selecting the appropriate trigger slope (rising or falling edge), the oscilloscope will only display the waveform when it meets these trigger conditions, helping to stabilize the display of the waveform.

What is a Trigger in MySQL Define different types of Trigger?

A trigger is a named database object that is associated with a table, and that activates when a particular event occurs for the table. Some uses for triggers are to perform checks of values to be inserted into a table or to perform calculations on values involved in an update. A trigger is associated with a table and is defined to activate when an INSERT,DELETE, or UPDATE statement for the table executes. A trigger can be set to activate either before or after the triggering statement. For example, you can have a trigger activate before each row that is deleted from a table or after each row that is updated. Sender : Yugant khokhar

How do you get chrono back in chrono trigger?

you get to level 99 and have 99 items

What are edge triggered and level triggered interrupts?

in the case of edge trigger, it may generate unwanted interrupt when input signal has glitch and so on. on the other hand if edge trigger not seen in some special situation (eg. when process in the service routin) level trigger preffered!

How the program statement and code are related?

A statement in your program is part of the code. In a low-level programming language, a statement will map directly to a single CPU instruction. In a high-level programming language, a statement is the smallest element of the language's syntax.

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