SELECT INTO INTEGER ARRAY

Question

Ich möchte Werte in einer Tabellenspalte (Spaltentyp ist Integer) einem Integer-Array zuweisen. Leider konnte ich nicht.

--TYPE--

CREATE OR REPLACE TYPE ABILITY_ID_ARRAY IS VARRAY(100) OF INTEGER 

--DECLARE IN PROCEDURE

ABILITY_IDS ABILITY_ID_ARRAY; 

--STATEMENT--

SELECT ABILITY_FK INTO ABILITY_IDS 
FROM T_EDUCATION_ABILITY_REL 
WHERE EDUCATION_FK = edu_id; 

erhielt ich diesen Fehler:

[Error] ORA-00932 (16: 12): PL/SQL: ORA-00932: inconsistent datatypes: expected UDT got NUMBER

Answer 1

Sie müssen BULK COLLECT Klausel verwenden, um eine Ergebnismenge in einer Sammlungsvariablen zu speichern.

Bitte studieren Sie die Dokumentation von SELECT INTO Aussage: https://docs.oracle.com/database/121/LNPLS/selectinto_statement.htm#LNPLS01345

into_clause
With this clause, the SELECT INTO statement retrieves one or more columns from a single row and stores them in either one or more scalar variables or one record variable.

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bulk_collect_into_clause
With this clause, the SELECT INTO statement retrieves an entire result set and stores it in one or more collection variables.

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Die PL/SQL statament wie dies in Ihrem Fall aussehen sollte:

SELECT ABILITY_FK BULK COLLECT INTO ABILITY_IDS 
FROM T_EDUCATION_ABILITY_REL 
WHERE EDUCATION_FK = edu_id;