How to add values to a VARRAY using a loop
来源： https://stackoverflow.com/questions/39638503/how-to-add-values-to-a-varray-using-a-loop
varray
How to add values to a VARRAY using a loop
来源： https://stackoverflow.com/questions/39638503/how-to-add-values-to-a-varray-using-a-loop
Delete element from Varray Oracle
问题 I have created Varray as : CREATE TYPE mytype IS VARRAY (4) OF VARCHAR2(50); / Then Created table as : CREATE TABLE tbl( a NUMBER, b VARCHAR2(30), c mytype); / Inserted values as : INSERT INTO tbl(a, b, c) VALUES (1,'Eng', mytype('qq','rr', 'yy', 'ttt')); How I can delete only the element 'ttt'?? Thanks !! 回答1: The Oracle documentation states that this is not possible directly via SQL: 5.3.2.3 Performing Atomical Changes on VARRAYs and Nested Tables You can make atomical changes to nested
Access a varray type defined inside a package using oci_new_collection
问题 Hello I am trying to pass in varrays from PHP to Oracle. I am using OCI8 and have earlier worked with varrays as arguments in stored procedures, and on compilation the types of those varrays are created. So while making collection instance on the PHP end, we can directly mention the collection name. Ex: $my_coll = oci_new_collection($c, 'MY_ARRAY'); where MY_ARRAY would be the varray type I had declared in the Oracle instance. create or replace type MY_ARRAY as varray(100) of varchar2(20); So
Pass varray variables into stored procedure - basic
问题 Hello I am a php developer, trying to get going with Oracle. So I need to pass a collection of variables into an Oracle stored procedure. So as a basic try, I am trying to access a procedure which would accept three parameters, out of which two would be varrays, but when I pass the declared varrays, I am getting an error. I am pretty sure, it is something to do with a little syntax, but i am not able to figure out that thing. Below is my table schema and stored procedure: create table emails
Oracle PL/SQL: How to DEREF from a VARRAY of REFs?
问题 I'm new to Oracle Objects and I have a problem. I don't know how to dereference an item from a VARRAY of REFs. Below is some source code that reproduces the problem that I have. The error is: PLS-00306: Wrong number or types of arguments in call to 'DEREF' DROP TYPE LOC FORCE / DROP TYPE LIST_LOC FORCE / DROP TYPE PIZ FORCE / CREATE OR REPLACE TYPE LOC AS OBJECT( NAME VARCHAR2(30), MEMBER FUNCTION GET_NAME RETURN VARCHAR2 ) / CREATE OR REPLACE TYPE BODY LOC AS MEMBER FUNCTION GET_NAME RETURN
Hibernate and Oracle VARRAYS/NESTED TABLE
问题 Oracle supports the use of VARRAYS and NESTED TABLE data types, allowing multivalued attributes. (http://www.orafaq.com/wiki/NESTED_TABLE) I am currently using Hibernate 3 as my ORM framework, but I can't see how I can map Hibernate to a NESTED TABLE/VARRAY data type in my database. I looked at defining custom types in Hibernate, with no success. (Can Hibernate even handle the "COLUMN_VALUE" Oracle keyword necessary to unnest the subtable?) Does anyone know how to implement these data types
How to count the number of elements in all Oracle varrays from table?
问题 I have a table like this: CREATE TABLE spatial_data ( id NUMBER PRIMARY KEY, geometry SDO_GEOMETRY); SDO_GEOMETRY has a field sdo_ordinates with the following type: TYPE SDO_ORDINATE_ARRAY AS VARRAY(1048576) OF NUMBER I can get the number of points for specified object: select count(*) from table( select s.geometry.sdo_ordinates from spatial_data s where s.id = 12345 ); How can I get count for several objects? It's not possible to use where s.id in (1, 2, 3, 4, 5) And I really care about
How to count the number of elements in all Oracle varrays from table?
I have a table like this: CREATE TABLE spatial_data ( id NUMBER PRIMARY KEY, geometry SDO_GEOMETRY); SDO_GEOMETRY has a field sdo_ordinates with the following type: TYPE SDO_ORDINATE_ARRAY AS VARRAY(1048576) OF NUMBER I can get the number of points for specified object: select count(*) from table( select s.geometry.sdo_ordinates from spatial_data s where s.id = 12345 ); How can I get count for several objects? It's not possible to use where s.id in (1, 2, 3, 4, 5) And I really care about performance. Maybe PL/SQL would be the right choice? I think that you can do it with one query: select s.id
PL/SQL use VARRAY in IN CLAUSE
问题 Is it possible to use VARRAY in IN CLAUSE of pl/sql? 回答1: Yes, you can, provided that the VARRAY type is a global type (and not local to some PL/SQL code): CREATE OR REPLACE TYPE str_tab_type IS VARRAY(10) OF VARCHAR2(200); DECLARE l_str_tab str_tab_type; l_count NUMBER; BEGIN l_str_tab := str_tab_type(); l_str_tab.extend(2); l_str_tab(1) := 'TABLE'; l_str_tab(2) := 'INDEX'; SELECT COUNT(*) INTO l_count FROM all_objects WHERE object_type IN (SELECT COLUMN_VALUE FROM TABLE(l_str_tab)); END; /