I have a problem i need to convert a blob column contains pic file to long row
i had many tries but no one succeeded
-----------------------------------
Source table | destination table
id number | id number
img blob | img long raw
------------------------------------
1 - INSERT INTO destination table SELECT id , img FROM Source table WHERE ROWNUM < 2
i have this error ORA-22835 Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 146092, maximum: 2000)
2 - INSERT INTO destination table SELECT id , dbms_lob.SUBSTR(img,0,2000) FROM Source table WHERE ROWNUM < 2
We have a huge table in production, with LONG column. We are trying to change its datatype to CLOB. The table has 120 Million records and is of 270 GB in size.
We tried using the oracle expdp/impdp option to try the conversion in our perf environment. With 32 parallels, the export completed in 1.5 hrs. However, the import took 13 hrs.
I also tried the to_lob option using inserts, it went on for 20 hrs and I killed the process. Are there any ways to improve the performance of LONG to CLOB conversion on huge tables?
Recently I came across this issue, which gives me an error as following.
ERROR: ORA-22835: Buffer too small for CLOB to CHAR or BLOB to RAW conversion (actual: 4907, maximum: 4000)
Now I am running a very simple query against one of the View in our Database. Query is:
Select Prj_Num, PM_Comments From ProjectDetails Where Rel = ‘2008 10’
What I have discovered so far is one of the field in this view name “PM_Comments” has more than 4000 bytes of information in it, Which is not supported by tools I have available on my computer. I have Oracle SQL Plus, SQL plus Worksheet, Access and Excel installed on my machine. DBA related to this database are stating that the field is working fine and query is executing without error since they are using TOAD for SQL, which does have capabilities to read more than 4000 bytes.
What I have figured out so far is “PM_Comments” is a LOB and SQL plus is having trouble reading this information more than 4000 bytes in one field of information.Because of this diagnosis, I have tried using following queries but it did not useful either.
Select Prj_Num, Substr (PM_Comments, 1, 4000) From ProjectDetails Where Rel = ‘2008 10’
Select Prj_Num, DBMS_LOB.Substr(PM_Comments, 4000, 1) From ProjectDetails Where Rel = ‘2008 10’
But both of the above mentioned queries did not work either. and I get the same ORA-22835 Error.I do not need all of the information in “PM_Comments” field, I only need about first 1000 characters of it.
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 ?
I got an exception when I was using sesame adapter to dump a turtle file which contains long texts as objects into oracle semantic database. The exception information is:
org.openrdf.repository.RepositoryException: org.openrdf.sail.SailException: java.sql.SQLException: ORA-01461: can bind a LONG value only for insert into a LONG column
ORA-06512: in "SF.ORACLE_ORARDF_ADDHELPER", line 1 ORA-06512: in line 1 at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:439) at oracle.jdbc.driver.T4CTTIoer.processError(T4CTTIoer.java:395) at oracle.jdbc.driver.T4C8Oall.processError(T4C8Oall.java:802) ...
resolve problem with move lob objects ? I move table partition and lob (BLOB) from one tablespace to another :
alter table EBIF.APO_T_VER_DISP_ACC_RESP MOVE PARTITION P1M20120901 LOB(SIGNATURE_PATTERN) STORE AS (TABLESPACE tmp) t able EBIF.APO_T_VER_DISP_ACC_RESP MOVE PARTITION have : pbeb_ap1.SYS>select partition_name , tablespace_name from dba_lob_partitions where table_name='APO_T_VER_DISP_ACC_RESP';
I need to move one of my LMT tablespace to DMT, Can I do it , I know that the DMT's are depreciated since Oracle 9i but still need to know this.I am trying the below mentioned method to achieve the same.
SQL> exec DBMS_SPACE_ADMIN.TABLESPACE_MIGRATE_FROM_LOCAL('USERS');But I am facing the below mentioned error: BEGIN DBMS_SPACE_ADMIN.TABLESPACE_MIGRATE_FROM_LOCAL('USERS'); END;
* ERROR at line 1: ORA-10616: Operation not allowed on this tablespace ORA-06512: at "SYS.DBMS_SPACE_ADMIN", line 216 ORA-06512: at line 1
I have a table datatype number (12,10) that I am reading out of. I am taking the value from this source table and inserting it into a destination table of datatype number (12,15).
I do not have the ability to alter the tables. How can i convert this number so i can insert. I am currently getting the error "ORA-01438: value larger than specified precision allowed for this column"
I am trying to use the to_number, but it not working. How can i format this number field so i can read it from source where i have number (12,10) and insert it successfully in a higher precision table of number(12,15)
Again i getting confused with conversion function especially Explicit data type conversions. some cases oracle server automatically converts the data to the required type. This is called IMPLICIT CONVERSION. Explicit conversions are done by using the conversion functions.
My requirement is to converts row to Column information and sum of column in Weight kg in below manner Data in columns are not of same nature they can keep on changing
Item Supplier Consumer Package DWP_NO DWP_ED Quality_code Pakaging Material WEIght kg 80026020 13984 90225217 21385 1 1 3 Not Applicable 22-paper .001 90218863 16578 1 1 1 Not Applicable 04-low density polyethylene (0.002+.002+.002)=.008 90218349 14507 1 1 1 Not Applicable 05-polypropylene,22-paper (.02+.05) =.07 40221108 21519 3,2,1 1 2 IKEA-CB-60 22-paper (.32+0.3+0.45)=1.07
I have one query in SQL server. I want to convert that query to Oracle. Well i am not that good with writing queries in Oracle. Following is the query in SQL server.
DECLARE @StartYear AS INT = 2010; DECLARE @EndYear AS INT = 2014;
WITH years AS (SELECT YYYY = @StartYear UNION ALL SELECT yyyy + 1 FROM years WHERE yyyy < @EndYear) [code].......
I have to use the "4*3600" in order to get the date to show up correctly, but even then the date sometimes comes up wrong. If the date occurs in the morning, then the date shows up as the previous day. I am sure this is probably due to the offset I am adding in the above formula. If I don't add the 4 hour offset, then the date shows up 4 hours off.
is there any licensed version tool available to convert objects from sql server to oracle especially procedures? I have tried with open source tools but that tool didn't convert properly.
DELETE FROM GR_GUEST WHERE GUEST_NAME='Ambassador Jack Binns bring Patrick Clawson' AND RESERVATION_ID_FK=21635
It gives an ORA-01460 which is "unimplemented or unreasonable conversion requested"Removing the " AND RESERVATION..." gives the same error.
The problem is that GUEST_NAME is a VARCHAR (150) and RESERVATION_ID_FK is an INT so I don't see where any conversion is coming in.I had changed the name a little bit as it used to a (, ) and a : in the GUEST_NAME. I thought that might be causing the issue so I removed them with a REPLACE through an UPDATE query. However, the record still needs to be deleted.
It should be a simple query as it happens on this table all the time, so I don't know why this one is different.
This is unix time where 1075329297 is seconds 572 is milliseconds.
first il store this time in oracle database.when i am retrieving it i want this date into yyyy-dd-mm format. Is it possible to do it in oracle.(using convert function) or is there some other way?
I have 2 tables.The column in table A is number and Column in table B is a varchar2 datatype.I have to use the Column of table B as a filter to column of Table A.Below is the example.
create table A(Col1 number); Inert into A values(1); Inert into A values(2); Inert into A values(3); Inert into A values(4);
Create table B(Col1 Varchar2(100)); Insert into b value ('1,2,3');
Select * from A where col1 in (select col1 from b) Error: Invalid Number
Is there a way to convert the varchar to number.The varchar field have multiple characters (numbers) seperated by commas.
I want to change a table datatype from date to number where already existing data should get convert.any possibility of doing where i tried like this but no get changing. Even as Julian format is working a bit i want the data to come as GMT format
Scenarios where i tried are like this.
ALTER TABLE Contacts ADD ALERT_DATE1 NUMBER(20,0) / UPDATE Contacts SET ALERT_DATE1 = TO_NUMBER(ALERT_DATE) / ALTER TABLE Contacts DROP COLUMN ALERT_DATE / ALTER TABLE Contacts RENAME COLUMN ALERT_DATE1 TO ALERT_DATE /
but second statement failing.
Julian fomat like
SELECT sysdate, TO_CHAR(sysdate, 'J'), TO_DATE(TO_CHAR(sysdate, 'J'),'J') FROM dual;
My application spools the data from database into file and file is fixed length. My application working fine when database has single byte characters. But I am getting fields postion misposition and length mismatch in spooled line when data base has Multi byte characters(ê).
I want to convert the multi byte characters into single byte while spooling the data( ê ==> e)
The below query has converted the multi byte to single byte character. But actual value is modified into lower case.
#################################################### select utl_raw.cast_to_varchar2((nlssort(c.Name,'nls_sort=binary_ai'))) sbyte, '|' c.Name from EMP c
select a.EV_ACTOR_NAME, round((b.total_transfer/(24 * a.Max_Throughput)) * 100) AVG_ThroughPut,round(((b.total_transfer/a.Max_Throughput) * 100 )) MAX_Throughput from (select distinct EV_ACTOR_NAME,((max(EV_TRANSFER_RATE) over ( partition by EV_ACTOR_NAME)) * 60 * 60) /1024 Max_Throughput from dprt_events where EV_ACTOR_NAME is not null ) a, (select distinct EV_ACTOR_NAME, (sum(EV_TRANSFER_SIZE) over( partition by EV_ACTOR_NAME)/1024/1024/1024) total_transfer from dprt_events where EV_ED_ID in (40,105,112) and EV_END_TIME between (sysdate - 20) -12/24 and sysdate - 20) b where a.EV_ACTOR_NAME = b.EV_ACTOR_NAME
