3.3.3 Using %ROWTYPE in Record Declarations

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3 Stored Procedure Language : 3.3 Variable Declarations : 3.3.3 Using %ROWTYPE in Record Declarations

The %TYPE attribute provides an easy way to create a variable dependent upon a column’s data type. Using the %ROWTYPE attribute, you can define a record that contains fields that correspond to all columns of a given table. Each field takes on the data type of its corresponding column. The fields in the record do not inherit any of the columns’ other attributes such as might be specified with the NOT NULL clause or the DEFAULT clause.
A record is a named, ordered collection of fields. A field is similar to a variable; it has an identifier and data type, but has the additional property of belonging to a record, and must be referenced using dot notation with the record name as its qualifier.
You can use the %ROWTYPE attribute to declare a record. The %ROWTYPE attribute is prefixed by a table name. Each column in the named table defines an identically named field in the record with the same data type as the column.
record table%ROWTYPE;
record is an identifier assigned to the record. table is the name of a table (or view) whose columns are to define the fields in the record. The following example shows how the emp_sal_query procedure from the prior section can be modified to use emp%ROWTYPE to create a record named r_emp instead of declaring individual variables for the columns in emp.

3 Stored Procedure Language : 3.3 Variable Declarations : 3.3.3 Using %ROWTYPE in Record Declarations

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