SQL & PL/SQL :: Column Validation For Types And Storing Data For Subtypes?
Apr 3, 2010
I have following structures:
SQL> CREATE TYPE address_typ AS OBJECT (line1 VARCHAR2(20), city VARCHAR2(20), COUNTRY VARCHAR2(20));
2 /
Type created.
SQL> CREATE TYPE phone_typ AS OBJECT (area_cd VARCHAR2(10), phone# VARCHAR2(10));
2 /
Type created.
SQL> CREATE TYPE phone_list_typ AS TABLE OF phone_typ;
[code]...
My questions are:
1. I have created an object table person_obj of parent type. I have not created object tables of salesperson_typ and customer_typ and want to store data related to both in person_obj. What is the difference between storing data in an object table of parent type and object table of subtypes? In which case should I consider storing data of all subtypes in an object table of parent type instead of object tables of individual subtypes?
2. Second question is regarding validating the column values before the creation of object instance. Suppose before creating an instance of salesperson_typ, I want to check if salary is NOT NULL and greater than 0. I guess constructor is the only option to achieve this but how full-proof it is if constructors are used for this purpose? Is there any other alternate way?
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Jun 1, 2013
I'm trying to determine why subtype creation is not working in 11G R2 XE, while it works in 11G R2 EE.
Environment is XE 11.2.0.2 on Windows 7 X64 (yes, not supported but I don't have anywhere else to try this).
Here is a test case, using the SYSTEM account as that is what the developers use (yes, terrible practice) :
--type
-- this works, creates the type
CREATE OR REPLACE TYPE [schema].prod_type AS OBJECT (
pid INT,
pprice NUMBER,
MEMBER PROCEDURE display(pid IN NUMBER))
NOT INSTANTIABLE NOT FINAL;
[code]....
I've tried adding the schema name after UNDER, e.g. UNDER [schema].prod_type with the same result.
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Apr 2, 2010
I'm writing a procedure that takes a table name as a parameter and I would like to print out the column name with the supporting row entry for each row. I know the logic I'd like to use, but how do you query the metadata to return the column names and store them.
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Oct 6, 2009
I am having problem in inserting a long file (80000 B) into CLOB cloumn in oracle database 10g.
ERROR at line 23:
ORA-06550: line 23, column 1:
PLS-00172: string literal too long
I am calling the oracle stored procedure through unix shell script as fallows.
#!/bin/ksh
cd /usr/home/dfusr/backup
i=`cat pe_proxy_master_2160.Thu.log | sed "s/'/''/g"`
sqlplus username/password@db 1> temp.log <<!
DECLARE
BEGIN
Write_Text_To_CLOB(1,'$i');
COMMIT;
END;
/
The file pe_proxy_master_2160.Thu.log is about 50000 B.
My Stored Procedure is fallows
CREATE OR REPLACE PROCEDURE Write_Text_To_CLOB (
p_id IN NUMBER
, p_clob IN VARCHAR2
)
IS
[code]....
I also tried with ojdbc5.jar and ojdbc14.jar files in class path.
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Aug 10, 2010
Question 1: What is the no of column limits in a single table? Is it same for all type of tables.
Question 2: How to estimate the size for a table in advance with "undo generation amount, index size, redo log size"?
Question 3: What is the real time scenario for creating a table on another schema?
Question 4:I read the below line in a document, but I'm not able to understand it
"we can't move types and extent tables to a different schema when the original data still exists in the database"?
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Aug 21, 2010
Since I need to do something along the lines of inserting an xml document into the database for later to use.
Anyway, the problem I get with the below is
Quote:
Error at line 95
ORA-00984: column not allowed here
Script Terminated on line 95.
It's on the INSERT line
declare
xmlInput clob;
begin
xmlInput :=('<?xml version="1.0" encoding="windows-1256"?>
<XLAAPRPT>
[Code].....
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Aug 10, 2013
I have a form with 3 blocks in our oracle application. Block1 is a single record block. Block2 and block 3 are multi record blocks with no of records 5. Block1 and block2 are in same canvas1 of a window1. Block3 is in canvas2 of window2. There is a relation between block1 and block2. Another relation with block2 and block3 is also available.
Now my issues is while creating a record, first i entered the data in block1 (which is a single record block). Then i entered data in five rows of second block. Then i entered data in block3(multi record block) by pressing the button in block2 (each button for each row). But before saving the entire form, when i checked the data in block3 by pressing the button of first record of block2, screen shows empty.
Code in button of block2 is as follows
show_window(WIN2');
Go_block('BLOCK3');
Code in button of block3 is as follows
hide_window('WIN2');
go_block('BLOCK2');
If post; is included in block3 button. then problem we will be solved. But we don't want to use post; as it lock the table.
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Oct 2, 2013
is there a way to modify supertypes without dropping / recreating its subtypes?
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Mar 3, 2012
how to display REFS from within a REF. I've not used my exact code here as its quite a big file so i've made a similar scenario to get me point across. Here is the code first:
1 CREATE OR REPLACE TYPE object1 AS OBJECT (
2 object_id NUMBER(5),
3 object_name varchar2(10),
4 object_added DATE);
5 /
6 CREATE TABLE object1_tab OF object1 (object_id PRIMARY KEY);
7 /
8 INSERT INTO object1_tab
9 VALUES (1,'Daniel',sysdate);
10 /
11 show errors;
12 /
13 CREATE OR REPLACE TYPE object2 AS OBJECT (
14 object_id NUMBER(5),
15 object_job varchar2(10),
16 object1_ref REF object1 );
17 /
18 CREATE TABLE object2_tab OF object2(object_id PRIMARY KEY);
19 /
20 INSERT INTO object2_tab
21 VALUES (1,'Developer',(SELECT REF(p) FROM object1_tab P
22 WHERE VALUE(p).object_id = &object_id));
23 /
24 select DEREF(object1_ref)
25 FROM object2_tab;
26 /
27 CREATE OR REPLACE TYPE object3 AS OBJECT (
28 object_id NUMBER(5),
29 object_location VARCHAR2(20),
30 object2_ref REF object2);
31 /
32 CREATE TABLE object3_tab OF object3 (object_id PRIMARY KEY);
33 /
34 INSERT INTO object3_tab
35 VALUES (1,'New York',(SELECT REF(p) FROM object2_tab P 36 WHERE VALUE(p).object_id = &object_id));
37 /
38 show errors;
39 /
40 select object_id,object_location,DEREF(object2_ref)
41 FROM object3_tab;
42 /
As yot can see in the code each object refernces from the previous. When I view the DEREF in the third table (object3_tab) i get the following output:
OBJECT_ID OBJECT_LOCATION DEREF(OBJECT2_REF)
--------- -------------------- ----------------------------------
1 New York [SANTA.OBJECT2]
Contained within the object2 is the following:
SANTA.OBJECT2(1,'Developer','oracle.sql.REF@c4cb4aa6')
How would i view the ref for object1 within object3? I will also need to be able to verify the data in these REF in the new table they are used in.
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Feb 25, 2013
I have to check if an entered item is identical to a previous entered item.
Tried to use the Page Level Validation but am confused with the way to do it.
P.S> The issue is that the entered item should be identical to part of the previous item (i.e. substr(P5_item, 1, 8)...)
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Jun 22, 2010
I am migrating sybase to oracle database. A Java developer needs money datatypes.I said to them, please change the cast(<value> as number(19,4) in java code side. but they are not accepted because money data type is used most of the places.
select cast(0 as money) from bank_trans; this sql statements present in java code. I need to create user defined type is equivalent to money datatype.
My steps
I have create user defined data types
create or replace type money as object(money as numbeer(19,4)
select cast(0 as money) from dual;
it shows inconsistent datatypes error.
create or replace type money is table of numbeer(19,4);
select cast(0 as money) from dual;
it shows inconsistent datatypes error.
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Aug 15, 2012
what could be effective data type to store large integer values like, 50,000; 10,000,000 etc.?
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Feb 19, 2013
I have a requirement like to validate the data in PL/SQL script dynamically.
I have 4 tables
TEST_TBL: Data available in this table
TEST_VALID_TBL: Contains field names of TEST_TBL and condition
VALID: Need to insert valid records
INVALID: Need to insert invalid records
I have to insert data into valid table when validation are full filled otherwise it should be insert invalid table .
Validation are based on TEST_VALID_TBL
While checking the data validations FIELD_NAME should be passed dynamically,because i have four columns in TEST_TBL but at present I am validating only 3 columns in feature it may be add more columns to validate.
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May 31, 2013
I have a editing database with an eversions table:
NAME OWNER
---------------------- --------------------------------
WR5936_DN6676 FRED
WR6739_DN7507 FRED
WR12744_DN13994 FRED
WR6739_DN7511 BARNEY
WR6801_DN7513 BARNEY
I have a process database with a pversions table:
SOID
----------------
5936
6739
12744
6739
I need to select from the editing.eversions table all the records that do not have a matching record in process.pversion. The eversion table is text, and has some additional crap surrounding the characters I want to use for creating a join.
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Aug 19, 2010
I need to implement a "Select All" function in a Data Block with All the Check boxes. It's a Database data block with 10 records to be displayed at a time. Check Box Items are in default layout. The requirement is when user checks/un-checks that select all check box which is placed on the left hand side of the other check boxes, it should select/deselect all the check box database items in that particular record.
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Apr 26, 2012
I need to store a date that will always be x years before the current date. Is doing something like
select sysdate -x from dual
Going to result in any weird issues down the road? Also, because I haven't explicitly specified the date, when queried, will the value always be sysdate - x (What I want to happen) as opposed to dateRowWasCreated - x?
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Mar 22, 2011
I am trying to store an image in a table. What is the easiest way to do this?
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Feb 3, 2011
I have a varchar field in a table. When I store the following string, some undefined character is storing.
String to be stored: Test String
String actually stored: Test ¿ string
Please note that here '' is not Hyphen. It is a special character that msword has. when you copy this and paste in a word document you find the difference.
I have listed the character set for CHAR and NCHAR from NLS_DATABASE_PARAMETERS
NLS_CHARACTERSET - WE8ISO8859P1
NLS_NCHAR_CHARACTERSET - AL16UTF16
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Aug 25, 2013
is there any method to store a value in "copy buffer" ?
I mean, for example, if i have defined a global varaiable as
Quote::global.name := 'orafaq';
Then what i need is a command something like:
windows_copy_buffer := :global.name ;
So that later on when i press control+v, then it paste the word "orafaq".
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Nov 18, 2012
I have a requirement to execute the query only once for all the columns mapped to a particular table. Lets take an example..
table t1 has the following columns mapping.
col1 col2 col3 col4
variable 1 table abc col1_abc ----
variable 2 table abc col2_abc ----
variable 3 table xyz col1_xyz ----
variable 4 table xyz col2_xyz ----
variable 5 table xyz col3_xyz ----
variable 6 table xyz col4_xyz ----
In col4 , we have to update the values of col3 (column) ... it is very easy to update the values by executing the query for each column but my requirement is ... I want to execute the query once for a table ( example select col1_abc,col2_abc from table_abc ... this will return always a single value after adding other conditions in where clause) and why I want to do this? .. because there can be multiple (might be 30 variables values)
from a single table.
I have converted the columns into rows by using listagg function now I have lets a dynamic query ( for the above example).
for i in 1.2
loop
l_query := ' select col1_abc, col2_abc from table_abc';
open c1 for l_query;
end loop;
my problem is : how to hold these values and update the above table?
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Aug 19, 2008
i basically need to setup a schema for globalization. i need to handle brittish dollar signs, american dollar signs. etc.what is a global character setting i can use to handle almost everything?
my problem right now is that when i store a brittian dollar sign it converts it to a box. i need this preserved so i can select it and use it later.will the WE8ISO8859P1 character setting work? where is a good place to view all of the types of character settings? and what they are for. etc. and also how do you change such things? not for the session, but for a schema wide
here are my current sessions
NLS_LANGUAGE AMERICAN
NLS_TERRITORY AMERICA
NLS_CURRENCY $
NLS_ISO_CURRENCY AMERICA
[code]...
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Dec 20, 2010
My current task is to store XML file from local system ( OS :XP)into server (OS : Linux) specified location with PL/SQL procedure.
Below is the XML file,
<?xml version="1.0" encoding="ISO-8859-1" ?>
<EMPLOYEES>
<ItemGroupData ItemGroupOID="Emp1" ItemGroupRepeatKey="1">
<ItemData ItemOID="EMPNO" Value="11"/>
[code]......
How to complete this task.
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Mar 21, 2013
I have a table where i have description column which free text column, the data in description column is seperated and i want to corvert 1 row data in multiple rows dependeing on the number of words.
eg
id description
78664 Pumps Alarm from CAMS RTU154
In the above example this column has 5 word so i want data in 5 rows like below
78664 Pumps
78664 Alarm
78664 from
78664 CAMS
78664 RTU154
This column data can be varied from 1 to any number of words.
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Oct 21, 2010
I am working with oracle 10g / 11. I need to operate with CLOB values of some table, unknown for me: I read them from .Net (3.5), and have to save them to files (Windows) to be loaded after this with DBMS_LOB. Lets say that table contains 3 columns (1 - CLOB) and several rows.
I want to store each CLOB value to separate file, and to store it after this into another DB table (another Instance, also). I cannot use dblinks and other techniques like this. The point is - how to avoid dealing with encoding?
I mean, that in the best scenario, I just want to save the CLOB values to the files, with no meter about Database Instance character set, language, and so on. How this can be accomplished? If I use default for .Net StreamReader UTF-8 format, the loading with DBMS_LOB failed.
If this is not possible, what will be the best way to determine the encoding, and to convert Oracle used encoding to .Net one?
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Oct 9, 2012
I have a requirement like getting list of values from one table and inserting them into another table.I have tried with sub querying but didn't worked out because the select query is returning multiple values.
how to proceed further and the ways how can I write this requirement.
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Jan 21, 2012
I have a web page written by pl/sql and html which some jpg files are published. Currently they are linked by html from a directory source. There are almost 70000 files which makes 1.15 gb. I want to store them in our oracle database but I have never done this before.
What I want to learn is how will be the performance for selecting from many jpg files with select statement and how much space would they keep in the database?
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Feb 13, 2012
I am storing customer's snaps in a table ( column's data type as LONG RAW) using oracle forms Webutil. Now there are 250 snaps in the table. The file type of these snaps is JPG with the average size 30KB.
I made a backup using export utility before storing these snaps and the exported DMP file's size was 36MB. Now after storing these just 250 snaps of 30KB the DMP file's size is gone over 300MB.
i need to change column's datatype? or some where in oracle forms's image item. Because on window's file system the size of these files is just 8MB.
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Mar 25, 2013
I am trying to insert In multiple table where one tbl PK is FK of other , I achieved that functionality using Instead of Insert trigger.(PK is handled by another trigger) -- main functionNow On successfully insert i need to captured the PK in Hidden variable to pass it on further for more insert on other table (Pk again being Fk to this table)--- secondary function
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Jul 27, 2012
I have to design a database so that the performance is optimum and joins are optimum between tables.
Requirement - I have several banks as clients globally, like HSBC, RBS, AMEX etc. Each bank operate globally, and are divided like the geographies, regions etc. For eg. HSBC is operating from US, UK, ASIA, AUSTRALIA. Each geoagraphy is further divided/childs, like, in ASIA has INDIA, PAKISTAN, SRI LANKA, CHINA. Further, it is divided, like in India, it has cities like DELHI, BOMBAY, CHENNAI etc., then further it has within Delhi - Lajpat Nagar, Rohini, Pashim Vihar etc.
As per the above scenario, I need to store addresses, phone numbers, of all the branches of all clients. Also, there is one more condition like in the above defined hierarchy, later on, a new hierarchy can be added, like In INDIA, it can further divided in States and then its local cities.
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Oct 21, 2010
I am working with oracle 10g / 11. I need to operate with CLOB values of some table, unknown for me: I read them from .Net (3.5), and have to save them to files (Windows) to be loaded after this with DBMS_LOB. Lets say that table contains 3 columns (1 - CLOB) and several rows.I want to store each CLOB value to separate file, and to store it after this into another DB table (another Instance, also).I cannot use dblinks and other techniques like this.
The point is - how to avoid dealing with encoding?
I just want to save the CLOB values to the files, with no meter about Database Instance character set, language, and so on. If I use default for .Net StreamReader UTF-8 format, the loading with DBMS_LOB failed.
what will be the best way to determine the encoding, and to convert Oracle used encoding to .Net one?
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