有人可以澄清下面的 PL/SQL 代码在做什么吗?看起来 assets_type 是 base_Asset 的表。这是否使它成为一个表?
当彗星填充数据时,我很难将其可视化:
assets(v_ref_key)(dbfields(i).field) := rtrim(replace(strbuf_long2,'''',''''''));
这类似于二维数组吗?这是否意味着用 v_ref_key 的索引填充 assets(临时)表中的字段列?
PROCEDURE LOAD
IS
TYPE dbfields_rec IS RECORD (field dbfields.field%TYPE,
article_title dbfields.title%TYPE,
image_title dbfields.title%TYPE);
TYPE dbfields_type IS TABLE OF dbfields_rec INDEX BY BINARY_INTEGER;
TYPE base_Asset IS TABLE OF VARCHAR2(4000) INDEX BY VARCHAR2(32);
TYPE assets_type IS TABLE OF asset_type INDEX BY VARCHAR2(4000);
dbfields dbfields_type;
assets assets_type;
v_ref_key assets.ref_key%TYPE;
-- CLIPPED Populate dbfields array code
-- It correctly populates
FOR i IN 1..dbfields.COUNT LOOP
BEGIN
sqlbuf := '(select rtrim(ufld3), ' || dbfields(i).field ||
' as col_label from assetstable ' ||
' where rtrim(ufld3) = ' || '''' || in_id || '''' || ' )';
OPEN assets_cur FOR
sqlbuf;
LOOP
FETCH assets_cur INTO v_ref_key, strbuf_long2;
EXIT WHEN assets_cur%NOTFOUND;
IF (trim(strbuf_long2) is not null and dbfields(i).field is not null) THEN
assets(v_ref_key) (dbfields(i).field)
:= rtrim(replace(strbuf_long2,'''',''''''));
END IF;
END LOOP;
close assets_cur;
END;
END LOOP;
END LOAD;