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There are two ways of reading table records within a stored procedure:

  • Using a SELECT INTO statement
  • Using a cursor.

The SELECT INTO statement can be used to read only a single record.

If more than one record is returned by a SELECT INTO statement, an error will be raised.

Therefore, in a situation where it can be expected that more than one record will be returned, it is required to use a cursor.

In general, basic procedures to handle cursor of ALTIBASE HDB and ORACLE are almost equal.

Descriptions about the difference of handling cursor will be followed in the subdivided pages.

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