SQL & PL/SQL :: Change Column Datatype From CLOB To Varchar2

Jun 22, 2012

I have to change the datatype of a column from CLOB to varchar2, without changing the order of the columns. The table has no data.
I could find any other way other than dropping the CLOB columns and then adding new columns with varchar2 datatype. But this changes the order of the columns in the table.

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SQL & PL/SQL :: Composite Index Having Varchar2 Number And CLOB Column

Feb 25, 2012

I need to create a composite unique index on varchar2, number and CLOB column. I haven't used such index before that have the CLOB column indexing. I found the below link related to CLOB indexing...

[URL]......

Links from where I can get related info. Also I would like to know the impact of such index on performance. I have to store and process around 50 million records in such a way, will it be beneficial to use this index?

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SQL & PL/SQL :: Create Materialized View With Clob Column Based On Varchar2?

Feb 9, 2011

I need to create a materialized view with a clob column based on a varchar2 column of a table.This is because in the mv the clob column data gets appended one after another.

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SQL & PL/SQL :: Change Datatype Of Column In Table Online Using DBMS REDEFINITION?

Aug 8, 2011

Is it possible to change the datatype of a column in a table online, using DBMS_REDEFINITION?

If Yes, then which of the options will be used with DBMS_REDEFINITION package?

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Application Express :: ORA-01439 / Column To Be Modified Must Be Empty To Change Datatype

Sep 4, 2012

I need to modify the column type that already has data in it, i need it change varchar to number then The datas entered have $ and , (e.g $3,200). I need the $ and , removed with column type set to numbers.

When i currently do this i get the following error:

The TABLE operation was not successful for the following reason:

ORA-01439: column to be modified must be empty to change datatype

I've tried unloading the data and loading the data using the spreadsheet, cut and past and csv file but both give me more errors, so i just want that one column modified.

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PL/SQL :: Conversion Of BLOB Datatype To CLOB Datatype

Aug 17, 2012

I would need to convert the column datatype from BLOB to CLOB. currently in the table, the BLOB column has the data. the requirement is to convert this column from BLOB to CLOB datatype.

How to convert from BLOB datatype to CLOB datatype ?

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SQL & PL/SQL :: Passing IN Parameter Of Datatype Varchar2

Feb 16, 2010

I have a stored proc which takes IN parameter of datatype varchar2.When I am trying to run the proc it is throwing error that "input buffer too small".The datatype assigned to IN parameter is of varchar2(200) but actually the length of the parameter passed is around 500 characters.the way to increase the length of Input parameter to 500 characters??

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Forms :: Calculation In Timing With Varchar2 Datatype

Jul 16, 2011

I'm facing a problem where I create a form and I want to feed time in "HH:MI" format, Firstly I choose the "Date" datatype, but during the feeding of time i.e "00:30", means if I want to feed only mints, then it doesn't accept, at the other hand if I feed "01:30" means mints with hr then it accepts.

To get rid of this problem I changed datatype "Date" to "Varchar2".

I create 3 columns on my form "TTL_WORKING_TIME" - "TTL_RUN_TIME" = "BRK_DWN_TIME". If I get any value in "BRK_DWN_TIME" column thn it has to be distribute in 3 or 4 reason of B/D, means if I get 00:30 mints brkdwn thn 00:15 mints for "reason1" and 00:15 mints for "reason2".

How I make calculation where I use "Varchar2" datatype.

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SQL & PL/SQL :: How Does Operator Works For Varchar2 Datatype Columns

Nov 22, 2011

I have a table called Student and a column as name now if i write a Query

select * from student where name < 'BRIAN D'

How does the comparison will be done.

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SQL & PL/SQL :: Write A Function That Receive As Parameter A Datatype Varchar2?

Jul 18, 2012

here is the situation, I have to write a function that receive as parameter a datatype varchar2 and validate if the letter is less than "A" or greater than "Z", it must print do not correct, or correct depending on the situation, no problem so far, the only problem I've got is: If the symbol is ";" is valid, but i do not know how to write it, It does not depend on the PL/SQl languaje but depends on the logic itself.

DECLARE
v_nombre varchar2(20):='john;%';
vv varchar2(1);
begin
for i in 1..length(v_nombre) loop

[code]...

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PL/SQL :: Automatic Rounding Off Number Datatype While Converted To VARCHAR2

May 29, 2013

I am facing issue related to Number data while it is being converted to Varchar2, it is automatically getting rounded off after 32 decimal place.My database version is "Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production".

1) create table test18 ( col1 varchar2(10), val Number);
create table succeeded.

2) insert into test18 values ('First', -347026.6408499652467480885711448714129679); -- After decimal 34 digits
1 rows inserted

insert into test18 values ('Second', -347026.64084996524674808857114487141296); -- After decimal 32 digits
1 rows inserted

3) select * from test18;

COL1 VAL
---------- ----------------------
First -347026.6408499652467480885711448714129679
Second -347026.64084996524674808857114487141296

4) As per the requirement, all the columns would need to be concatenated as a single string along with comma delimiter

select col1 || ',' || val as record_string
from test18;

RECORD_STRING
---------------------------------------------------
First,-347026.64084996524674808857114487141297
Second,-347026.64084996524674808857114487141296

"First" string got rounded off to 97 (last 2 digits) instead of 9679 but for "Second" record it holds the actual value.Only thing which I could figure out while the number is getting type casted to String, it is getting rounded off to 32 decimal place.throw off some light on it and provide the solution how the original record can be kept intact without rounding off.

Expected Output_
RECORD_STRING
---------------------------------------------------
First,-347026.6408499652467480885711448714129679
Second,-347026.64084996524674808857114487141296

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Table Partitioning - Range On Datatype Number (21, 7) And Varchar2

Nov 15, 2013

Database Version : DB : Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit ProductionOS : HP-UX nduhi18 B.11.31 U ia64 1022072414 unlimited-user licenseAPP : SAP - ERP I have to RANGE partition on UPDATED_ON  or PROFILE  either one table which is having below

structure :   Name                Null?    Type
-------------------- -------- --------------------------------
MANDT                NOT NULL VARCHAR2(9) MR_ID                NOT NULL VARCHAR2(60) PROFILE              NOT NULL VARCHAR2(54) REGISTER_ID          NOT NULL VARCHAR2(30) INTERVAL_DATE        NOT NULL VARCHAR2(24) AGGR_CONSUMPTION     NOT NULL NUMBER(21,6) MDM_VERS_NO          NOT NULL VARCHAR2(9) MDP_UPDATE_DATE      NOT NULL VARCHAR2(24) MDP_UPDATE_TIME      NOT NULL VARCHAR2(18) NMI_CONFIG           NOT NULL VARCHAR2(120) NMI_CONFIG_FLAG      NOT NULL VARCHAR2(3) MDM_DATA_STRM_ID     NOT NULL VARCHAR2(6) NSRD                 NOT NULL VARCHAR2

[Code]....

 As per my knowledge, RANGE is better suited for DATE or NUMBER. and INTERVAL partition is possible on DATE or NUMBEr . Column PROFILEIts is of VARCHAR2 datatype. I know still I can partition as Oracle internally convert varchar2 to number while inserting data. But INTERVAL is not possible.  How to RANGE partition on PROFILE ? Column CREATED_ON :It is of NUMBER with decimal

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SQL & PL/SQL :: Using Clob Instead Of Varchar2

Mar 23, 2010

in our application we are using clob column instead of varchar2 because varchar2 does not allow more that 4000 chars, so Using clob allows to put data of any length, will it cause performance issues ? we have this column in almost in all tables .

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SQL & PL/SQL :: How To Convert Varchar2 To CLOB

Mar 28, 2008

How to convert a varchar2 column to CLOB when there is a thousands of records in it.

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SQL & PL/SQL :: Can Insert CLOB In Varchar2

May 12, 2010

I'm trying to insert CLOB to varchar2 from one DB to another using database link but failed.

INSERT INTO tmp_std_master@aapsbhx.iss.soton.ac.uk
(student_id, title, first_name, middle_name, surname, hus_id,
date_of_birth, email_address, prog_desc --- varchar2 (100)
)
SELECT DISTINCT c.ref1 student_id, c.title, c.firstname firstname,

[code]....

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SQL & PL/SQL :: Inserting Data From Clob To Varchar2?

Aug 21, 2006

I have to Insert data from one table to another table. First table contains some clob datatype columns and second table have carchar2 datatype.

Below are the structures of both tables;

SQL> DESC TBL_MAINSQL> DESC TBL_MAIN2
Name Type Name Type
----------------------------- ----------------------------------------- --------------
TXT_FEIN_NUMBER VARCHAR2(9) TXT_FEIN_NUMBER VARCHAR2(9)
TXT_QUOTE_NUMBER VARCHAR2(12)TXT_QUOTE_NUMBER VARCHAR2(12)
TXT_POLICY_NUMBER VARCHAR2(12)TXT_POLICY_NUMBER VARCHAR2(12)
TXT_AGENT_CODE VARCHAR2(10)TXT_AGENT_CODE VARCHAR2(10)

[code]....

The Table contains 5000 records. how to convert CLOB to VARCHAR2.

I used DBMS_LOB.SUBSTR but I received BUFFER TO SMALL ERROR.

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Server Utilities :: CLOB Inserted As Varchar2

Oct 16, 2010

I ave a few fields in my flat file which might be a CLOB (not sure how the source is storing the data - need to check on that.) I am trying to load this data into my table column which is a varchar2(4000) . I am able to insert most of the data but few records are rejected because of Field too long error....

While debugging the problm I manually copied the field from flatfile and inserted into my table - bingo it worked. (The field was not more than 1000 bytes - only a few lines of information ) My question: When a field is not more than 1000 bytes why couldnt it get inserted as a varchar2?

Note : I cannot make the table column as CLOB because the problem is not with just one column - I have 10 fields which have this problem . So its not advisable to have 10 CLOB fields in the table......

I have specified OPTIONS (BINDSIZE=256000,READSIZE=256000,ROWS=1)

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VARCHAR2 (100) Changes Column To VARCHAR2 (100 Byte)

Oct 24, 2007

i am fairly new in the oracle arena, but what would cause a statement such as

ALTER TABLE TEST_TABLE MODIFY text_field1 varchar2(100) DEFAULT 'testval' NULL

to change a column's type from VARCHAR2(100) to VARCHAR2(100 byte)? i found a few mentions of the 100 byte concept online but nothing that jumped out at me.

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Update Using CLOB Datatype In Oracle

Aug 16, 2010

how can i update CLOB values in Oracle? I am passing string values to Clob datatype from .Net Eg '13223311','12122112','122125552'

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PL/SQL :: Calculate Size Of Clob Datatype

Nov 14, 2012

i am trying to calculate the avg size of a row, in which i have one column which has clob datatype,

for rest of the datatypes i am using (avg(vsize(col_name,varchar2(10)))), i want a simple function that can calculate the clob datatype.

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PL/SQL :: Created A Table With CLOB As Datatype For One Of Columns

Aug 5, 2013

<ORACLE VERSION : 11.2.0.2.0> i have created a table with CLOB as datatype for one of the columns, I am trying to store a string ( I am not sure about the length of the string) , when i am querying on my table for the CLOB column,instead of the actual string "(HUGECLOB)" is coming. How to get the actual string in case the problem is with the SIZE.

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Forms :: Error In Concat A Clob With Char Datatype

Nov 2, 2011

How could we concat a clob with a char datatype.

declare
a clob;
b varchar2;
c clob;
begin
c:=a||b;
end;

When execute above code in form runtime, I get error ora-32767.

"ORA-29287: invalid maximum line size Cause: An invalid maximum line size value was specified.
Action: Correct the maximum line size to be in the range [1, 32767]."

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SQL & PL/SQL :: Varchar2 Data Change Mmyyyy To Yyyymm

Jan 8, 2013

CREATE TABLE CHECK(
ADM_DATE VARCHAR2(10)
)
INSERT ALL
INTO CHECK VALUES ('122012')
INTO CHECK VALUES ('112012')
INTO CHECK VALUES ('102012')
INTO CHECK VALUES ('092012')
INTO CHECK VALUES ('082012')
SELECT * FROM DUAL;
ADM_DATE has the data as in format 'MMYYYY' but I've to make it as 'YYYYMM' while the datatype of ADM_DATE is VARCHAR2.

How can I do it?

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SQL & PL/SQL :: Change Datatype From Object

Dec 8, 2010

I have created an Object Type and this Type is mapped to a column datatype in a table.This Table has values inserted.

create or replace
type column_type as object (
col_name varchar2(30),
col_comment varchar2(4000)
);
[code]....

ORA-02303: cannot drop or replace a type with type or table dependents...how to resolve this issue without having to delete any column from the table?

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Server Administration :: Change Datatype To HEX Notation / Base 64

Jul 10, 2013

I am currently in the process of migrating our database from US7ASCII to AL32UTF8 using DMU.

I am stuck at a point where I have encrypted data that, when the conversion happens, will be destroyed. Oracle suggests to move the data which is currently stored in VARCHAR2 datatype, to a "character set safe way" like hex notation or base64 before converting.

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SQL & PL/SQL :: Multipurpose Varchar2 Column Error When Converting To Date

Aug 16, 2011

i have a varchar2 column containing string values that can be converted to date i.e. ('31-JUL-11') and that column also contains text strings in it. i.e. ('Some string data...')

records whose column value can be converted to date are extractable via where clause (i.e. those rows are associated with some fix number / flag)

now when i try to use to_date function i get the error that

" ORA-01858 a non-numeric character was found where a numeric was expected "

in sql i have added a where clause to only pick rows with flag, but even then it gives the error.

using a subquery in the from clause eliminates the error, but when i create it in a view it again gives the same error.

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SQL & PL/SQL :: Check Constraint To Disallow Number In Varchar2 Column

Apr 21, 2010

I have table customer which contains a column CUSTOMER_FIRST_NAME

CUSTOMER_FIRST_NAME VARCHAR2(50)

What will be sql statement to add a constraint on the CUSTOMER_FIRST_NAME column of the CUSTOMERS table so that the value inserted in the column does not have numbers ?

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SQL & PL/SQL :: Column Of Table With Data Type Varchar2 - Corresponding Index

Jan 10, 2013

I have an index on column of table which of data type varchar2. While selecting data from that table I am using following scenarios in where on the indexed column

like '%abc%'
like 'abc%'
like '&abc'

Will be the corresponding index will be for those cases?

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PL/SQL :: How Rownum Works For The Column Having Data Type As Varchar2

Jan 29, 2013

bookshelf_test table structure

title     varchar2(100)     y          
publisher     varchar2(20)     y          
categoryname     varchar2(20)     y          
rating     varchar2(2)     y

my query is,
select ROWNUM AS "Rank",title,publisher from (select rating,title,publisher from bookshelf_test order by rating desc ) where ROWNUM <=3

returns result ,

1     1     MY LEDGER     KOCH PRESS
2     2     TO KILL A MOCKINGBIRD     HARPERCOLLINS
3     3     THE MISMEASURE OF MAN     W.W. NORTON        

But inner query (select rating,title,publisher from bookshelf_test order by rating desc ) returns,

1     5     WONDERFUL LIFE     W.W.NORTON
2     5     THE MISMEASURE OF MAN     W.W. NORTON
3     5     TO KILL A MOCKINGBIRD     HARPERCOLLINS
4     5     MY LEDGER     KOCH PRESS
5     4     TRUMAN     SIMON SCHUSTER
6     4     GOSPEL     PICADOR
7     4     HARRY POTTER AND THE GOBLET OF FIRE     SCHOLASTIC
8     4     INNUMERACY     VINTAGE BOOKS
9     4     JOHN ADAMS     SIMON SCHUSTER
10     4     JOURNALS OF LEWIS AND CLARK     MARINER
11     4     LETTERS AND PAPERS FROM PRISON     SCRIBNER
12     4     PREACHING TO HEAD AND HEART     ABINGDON PRESS
13     4     THE SHIPPING NEWS     SIMON SCHUSTER
14     4     THE GOOD BOOK     BARD
15     4     THE DISCOVERERS     RANDOM HOUSE
16     3     THE COST OF DISCIPLESHIP     TOUCHSTONE
17     3     SHOELESS JOE     MARINER
18     3     KIERKEGAARD ANTHOLOGY     PRINCETON UNIV PR
19     3     EMMA WHO SAVED MY LIFE     ST MARTIN'S PRESS
20     3     EITHER/OR     PENGUIN
21     3     CHARLOTTE'S WEB     HARPERTROPHY
22     3     BOX SOCIALS     MARINER
23     3     ANNE OF GREEN GABLES     GRAMMERCY
24     3     WEST WITH THE NIGHT     NORTH POINT PRESS
25     3     UNDER THE EYE OF THE CLOCK     ARCADE PUB
26     3     TRUMPET OF THE SWAN     HARPERCOLLINS
27     2     COMPLETE POEMS OF JOHN KEATS     VIKING
28     1     POLAR EXPRESS     HOUGHTON MIFFLIN
29     1     GOOD DOG, CARL     LITTLE SIMON
30     1     MIDNIGHT MAGIC     SCHOLASTIC
31     1     RUNAWAY BUNNY     HARPERFESTIVAL

why final queries top 3 rows r different than inner query ?

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PL/SQL :: Get Particular Value From Column Which Is BLOB Datatype?

Jul 31, 2013

on this query. I need to get a particular value from a column which is a BLOB datatype. Here is the sample

data ID                           TESTDATA1                            Best Buy
00001234 12222 30 00 2                           
Lowes 00001234 12222 100 00 3                           
Walmart 00001234 12222 129 00 4                           
abc 00001234 12222 5000 00 5                           
Toshiba 00001234 12222 21 00 6                           
abcdefghij 00001234 12222 49 00  

Where '00001234' is the Invoice , '12222' is Netamount field and highlighted in red is the $ amount for that invoice.

The only data i need query to return 12222 (netamount)= $amount. I tried using substr  select substr((TESTDATA),19,26)test from TABLEA; But this gives me the only the first row but not other amount which have different positions.

Here is the desired output

OutputID                            TESTDATA 1                          
12222 30 2                            12222 100 3                           
12222 129 4                            12222 5000 5                           
12222 21 6                            12222 49 

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