From which verison of oracle support the :NEW variable in trigger

Question

A trigger using the :NEW variable can be compiled in oralce 10g but can't in oracle7 .
Does oracle 7 support the :NEW variable?

Answer 1

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A trigger using the :NEW variable can be compiled in oralce 10g but can't in oracle7 .
Does oracle 7 support the :NEW variable?
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You can answer questions like this yourself by always checking the documentation first.
NEW is not a variable, it is a correlation name.
See 'The Trigger Body' section in the Oracle7 Server Application Developer's Guide
http://docs.oracle.com/cd/A57673_01/DOC/server/doc/ADG73/ch9.htm
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The Trigger Body
The trigger body is a PL/SQL block that can include SQL and PL/SQL statements. These statements are executed if the triggering statement is issued and the trigger restriction (if included) evaluates to TRUE. The trigger body for row triggers has some special constructs that can be included in the code of the PL/SQL block: correlation names and the REFERENCING option, and the conditional predicates INSERTING, DELETING, and UPDATING.
Accessing Column Values in Row Triggers
Within a trigger body of a row trigger, the PL/SQL code and SQL statements have access to the old and new column values of the current row affected by the triggering statement. Two correlation names exist for every column of the table being modified: one for the old column value and one for the new column value. Depending on the type of triggering statement, certain correlation names might not have any meaning.
A trigger fired by an INSERT statement has meaningful access to new column values only. Because the row is being created by the INSERT, the old values are null.
A trigger fired by an UPDATE statement has access to both old and new column values for both BEFORE and AFTER row triggers.
A trigger fired by a DELETE statement has meaningful access to old column values only. Because the row will no longer exist after the row is deleted, the new values are null.
The new column values are referenced using the NEW qualifier before the column name, while the old column values are referenced using the OLD qualifier before the column name. For example, if the triggering statement is associated with the EMP table (with the columns SAL, COMM, etc.), you can include statements in the trigger body similar to
IF :new.sal > 10000 . . .
IF :new.sal < :old.sal . . .
Old and new values are available in both BEFORE and AFTER row triggers. A NEW column value can be assigned in a BEFORE row trigger, but not in an AFTER row trigger (because the triggering statement takes effect before an AFTER row trigger is fired). If a BEFORE row trigger changes the value of NEW.COLUMN, an AFTER row trigger fired by the same statement sees the change assigned by the BEFORE row trigger.
Correlation names can also be used in the Boolean expression of a WHEN clause. A colon must precede the OLD and NEW qualifiers when they are used in a trigger's body, but a colon is not allowed when using the qualifiers in the WHEN clause or the REFERENCING option.
The REFERENCING Option