Compressing blob field in an existing table
Hi,
I have a table of 1.5TB that contains blob field in binary format. I want to compress the BLOB field to save disk space. The oracle version is 10.2.Can anyone help me out.
Thanks in advance.
Siddh
There is a package utl_compress that is able to compress blobs.
if performance is not a problem then you can store all the blobs as compressed. And then add a view to this table that uncompresses the blob data during the select.
If you upgrade to 11g there is also a cost option to compress the data on a tablespace level. See also: http://www.oracle.com/technetwork/database/features/storage/advanced-compression-whitepaper-130502.pdf
Similar Messages
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Adding fields to an existing table without dropping it
Hi Guys,
Just wondering if anyone can tell me if it's possible to write an SQL statement to add extra fields to an existing table without dropping it then re-creating and also what SQL would be needed. The added fields will be part of an exclusive arc, so can contain NULL values.
Any help would be much appreciated.
AntonHi,
You can Use the ALTER TABLE statment.
like consider emp table having 3 columns empno,enmae,deptno.
now u want to add sal and mgr columns.
u can do it like this
ALTER TABLE ADD ((sal NUMBER(5,2),(mgr NUMBER));
If u want to modify the column datatype
u can use ALTER TABLE MODIFY (<column datatype>............);
Trinath Somanchi,
Hyderabad. -
Problem with update of BLOB field in a table with compound primary key
Hi,
I've been developing an application in Application Express 3.1.2.00.02 that includes processing of BLOB data in one of the tables (ZPRAVA). Unfortunately, I've come across a strange behaviour when I tried to update value in a BLOB field for an existing record via a DML form process. Insert of a new record including the BLOB value is OK (the binary file uploads upon submiting the form without any problems). I haven't changed the DML process in any way. The form update process used to work perfectly before I'd included the BLOB field. Since than, I keep on getting this error when trying to update the BLOB field:
ORA-20505: Error in DML: p_rowid=3, p_alt_rowid=ID, p_rowid2=CZ000001, p_alt_rowid2=PR_ID. ORA-01008: not all variables bound
Unable to process row of table ZPRAVA.
OK
Some time ago, I've already created another application where I used similar form that operated on a BLOB field without problems. The only, but maybe very important, difference between both the cases is that the first sucessfull one is based on a table with a standard one-column primary key whereas the second (problematic one) uses a table with compound (composite) two-column PK (two varchar2 fields: ID, PR_ID).
In both cases, I've followed this tutorial: [http://www.oracle.com/technology/obe/apex/apex31nf/apex31blob.htm]).
Can anybody confirm my suspicion that Automatic Row Processing (DML) can be used for updating BLOB fields within tables with only single-column primary keys?
Thanks in advance.
ZdenekIs there a chance that the bug will be included in the next patch?No, this fix will be in the next full version, 3.2.
Scott -
User-defined field in existing table
Hello,
I would like to know if it is possible to add a user-defined field in an existing table.
Actually, I would like to add a combobox with other types of partners than vendors, customers and leads and add a user-defined field in the OCRD table.
Thank you
Regards,
ThibaultHello,
Your answers help me a lot !
My code is working, i.e. when I create a new BP and choose another type in my comboBox, the information is saved.
When I search a BP who has this type, SAP find the good BP.
But, I don't see where the data is stored, I don't see anything which make the difference between 2 BP with 2 different types in the OCRD table.
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Thank you
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Message was edited by: Thibault Romieu -
Export table rows to Excel and save to BLOB field
Hi all,
I try to find out how export data from table to Excel file format and save the result to BLOB field in some other table.
I know how to download report from Page by submit, but I need to process data and instead of returning result to user as Excel file - save it in BLOB.
Also I found implementation on JAVA for the issue but actually I wanna study out - Is it possible to resolve this issue by PL/SQL and APEX API methods?
So, any ideas :) ??
Thanks,It is not very difficult.
Here is the function I use to get a CSV file from a query :
PROCEDURE get_query_result_as_csv_file(
in_query IN VARCHAR2,
in_filename IN VARCHAR2)
IS
l_blob BLOB;
l_raw RAW(32767);
l_cursor INTEGER;
l_cursor_status INTEGER;
l_col_count NUMBER;
l_col_val VARCHAR2(32767);
l_desc_tbl sys.dbms_sql.desc_tab2;
BEGIN
-- create temporary BLOB
dbms_lob.createtemporary(l_blob, FALSE);
-- open BLOB
dbms_lob.open(l_blob, dbms_lob.lob_readwrite);
-- open cursor (and get cursor id)
l_cursor := dbms_sql.open_cursor;
-- parse query
dbms_sql.parse(l_cursor, in_query, dbms_sql.native);
-- get number of columns and description
dbms_sql.describe_columns2(l_cursor, l_col_count, l_desc_tbl);
-- define report columns
FOR i IN 1 .. l_col_count LOOP
dbms_sql.define_column(l_cursor, i, l_col_val, 32767);
END LOOP;
-- write column headings to CSV file
FOR i IN 1 .. l_col_count LOOP
l_col_val := l_desc_tbl(i).col_name;
IF i = l_col_count THEN
l_col_val := '"' || l_col_val || '"' || chr(10);
ELSE
l_col_val := '"' || l_col_val || '",';
END IF;
l_raw := utl_raw.cast_to_raw(l_col_val);
dbms_lob.writeappend(l_blob, utl_raw.length(l_raw), l_raw);
END LOOP;
-- execute the query
l_cursor_status := dbms_sql.execute(l_cursor);
-- write result set to CSV file
LOOP
EXIT WHEN dbms_sql.fetch_rows(l_cursor) <= 0 OR dbms_sql.last_row_count > 1000;
FOR i IN 1 .. l_col_count LOOP
dbms_sql.column_value(l_cursor, i, l_col_val);
IF i = l_col_count THEN
l_col_val := '"' || l_col_val || '"' || chr(10);
ELSE
l_col_val := '"' || l_col_val || '",';
END IF;
l_raw := utl_raw.cast_to_raw(l_col_val);
dbms_lob.writeappend(l_blob, utl_raw.length(l_raw), l_raw);
END LOOP;
END LOOP;
-- close cursor and BLOB
dbms_sql.close_cursor(l_cursor);
dbms_lob.close(l_blob);
-- set http headers
owa_util.mime_header('application/octet', FALSE);
htp.p('content-length: ' || dbms_lob.getlength(l_blob));
htp.p('content-disposition: attachment;filename="' || in_filename || '.csv"');
owa_util.http_header_close;
-- download the file
wpg_docload.download_file(l_blob);
END;If you need to get the query dynamically from your report, you can try to get the source from the apex_application_page_regions table :
SELECT region_source
FROM apex_application_page_regions
WHERE application_id = 111 -- replace with your application id
AND static_id = 'static_id_of_your_report'Then instead of using wpg_docload.download_file, simply insert the BLOB into your table.
Good luck.
Yann. -
Error while trying to store PDF in Oracle's BLOB field
Hi folks!
I'm having problems while trying to store PDF file in a BLOB field of an Oracle table
This is the message code:
Exception in thread "main" java.sql.SQLException: Data size bigger than max size for this type: 169894
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.ttc7.TTCItem.setArrayData(TTCItem.java:95)
at oracle.jdbc.dbaccess.DBDataSetImpl.setBytesBindItem(DBDataSetImpl.java:2414)
at oracle.jdbc.driver.OraclePreparedStatement.setItem(OraclePreparedStatement.java:1134)
at oracle.jdbc.driver.OraclePreparedStatement.setBytes(OraclePreparedStatement.java:2170)
at vgoactualizacion.Main.main(Main.java:84)
This is the piece of code i'm using:
Assuming conn = conection to Oracle 10g Database ( it's working )
String miProcedimientoAlmacenado = "{ call package_name.update_client(?,?, ?) }";
CallableStatement miComando = conn.prepareCall(miProcedimientoAlmacenado);
miComando.setString(1,miClienteID ); //first parameter : IN
//second parameter : IN
File miPDF = new File(pathPDF + "//" + miClienteID + ".pdf");
byte[] bodyIn = readFully(miPDF); //readFully procedure is shown below
miComando.setBytes(2, bodyIn); //THIS IS THE LINE WHERE THE ERROR IS PRODUCED
//3rd parameter: OUT
miComando.registerOutParameter(3, java.sql.Types.VARCHAR);
miComando.execute();
private static byte[] readFully(File miPDF) throws FileNotFoundException, IOException {
FileInputStream fis = new FileInputStream(miPDF);
byte[] tmp = new byte[1024];
byte[] data = null;
int sz, len = 0;
while ((sz = fis.read(tmp)) != -1) {
if (data == null) {
len = sz;
data = tmp;
} else {
byte[] narr;
int nlen;
nlen = len + sz;
narr = new byte[nlen];
System.arraycopy(data, 0, narr, 0, len);
System.arraycopy(tmp, 0, narr, len, sz);
data = narr;
len = nlen;
if (len != data.length) {
byte[] narr = new byte[len];
System.arraycopy(data, 0, narr, 0, len);
data = narr;
return data;
}//fin readFully
This approach indicates that the PDF file is converted into an array of bytes, then is stored as binary in the BLOB field.
Thanx in advance, and looking forward for your comments.You will probably need to use the setBinaryStream() method instead of setBytes().
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Creation of key field in a database table
Hi All,
As per my requirement, i have to add few new key fields in an existing table.
Now total number of key fields are 17, but while saving this is giving me an syntax error stating 'According to SAA standard key fields cannot be more that 16'.
I s there any other go? i can not reduce the number of key fields.
Regards,
Pankaj.
Edited by: Pankaj Bist on Sep 5, 2008 3:24 PMHi,
In the se11 transaction,In the menu bar o like this.
Utilites-->Database Utility and the Press the button Activate and Adjust Database.
Note:
Make sure that you total data in the table to be downloaded into ur system.
As ctivate and Adjust Database makes data to be deleted.
Regards,
Rama. -
Experts -
Is there any way that we can read the data from BLOB fields of data base table column in Endeca 3.0 ?
Do we have some direct readers for BLOB fields ? OR point # 2 below is the correct way in Endeca ?
Some details I could collect from search/google are below :
http://docs.oracle.com/cd/E29585_01/DeveloperStudio.61x/DevStudioHelp.pdf Says that directly CLOB / BLOBs are not supported by ENDECA
https://forums.oracle.com/thread/2426178 - Says a replacement for reading BLOB sources ' Oracle Endeca Advanced JDBC Column Handler 6.1.2 for Generic Platform'
Any help/pointers is highly appreciated.
Thank you,
RanishI see no reason why you shouldn't be able to bring a BLOB field into Endeca but I think the real question is what is the data and what are you trying to do with it?
If it's some kind of object (say, a serialized profile object about an account), wouldn't it make sense to de-serialize it and add some attribution to the Endeca record? If it's something else, like say an image file, you could probably hack something together to show it on a details page but bringing it in to the index would provide zero value over just having it somewhere else (like a web server). When I say no value in Endeca for an image, I mean, you can't search on it, you can't navigate on it, maybe you could display it (though you would create a lot of un-necessary work for yourself).
Probably need more detail here. Also, an additional note is that both links you include reference products and utilities that are part of the Oracle Endeca Commerce stack, not Oracle Endeca Information Discovery.
Patrick Rafferty
http://branchbird.com/blog/category/oeid/ -
Dynamics NAV compressed BLOB format
Hello!
There are compressed BLOB fields in Dynamics NAV 2009. Where can I find specification of this binary format? I need to extract data straight from SQL database.
Thanks!Hello Alexander Kuzin,
Can you confirm if you are just looking to parse the SQL server data files to extract data from fields of type varbinary(max) ? Or is there an additional requirement beyond that ? specifically is there any parsing you intend to do from Dynamics NAV perspective
? You could send an an e-mail to dochelp at microsoft dot com with a reference to this question so that we can get more clarity on what you are trying to achieve. We can post the final answer here in this forum when we reach resolution.
Regards,
Sreekanth Nadendla
Microsoft Windows Open specifications -
Problem inserting a gif into a blob field in a table with sqldev / forms6i
Problem solved - For those that might be interested, the errors don't make much sense - the problem was with the gif. Seems that these 28 gifs plus the new scans were saved from the scanner with
GIF - LZW, Transparent color: 255
Converting them to Black and white allowed them to be loaded.
If anyone understands why, I'd like to know
glenn
I was previously having a problem deleting a row with a blob and it was suggested that I create the table using rowdependencies - which I did as follows.
CREATE TABLE "MDD"."MDD_FIGURE2"
( "FG_FIGURENAME" VARCHAR2(18 BYTE),
"FG_FIGURE" BLOB,
CONSTRAINT "FG_FIGURENAME_NN" CHECK ("FG_FIGURENAME" IS NOT NULL) ENABLE
) ROWDEPENDENCIES;
Then I copied my data from my previous table with the following - and everything came across
INSERT INTO MDD_FIGURE2 (fg_figurename, fg_figure)
SELECT FIG_FIGNAME, FIG_FIGURE FROM MDD_FIGURE;
mdd_figure2 was then renamed to mdd_figure
The table, Mdd_Figure, already contains some 2000+ .gifs that were successfully loaded with Forms 6i (yes, I know it is old, but I am stuck with having to use it). All the .gifs I am loading are from scans and all are less than 64k. However, 28 .gifs would not load. When I insert the .gif into the field and committed the form, the status message tells me a record was written but when I check it, the blob is empty.
So, when I try to insert one of these problem .gifs in SqlDeveloper, I open the new mdd_figure table, select the blob field, open the edit dialog, set it to figure, select the .gif that I want to load and then save it. The blob field changes from NULL to BLOB, but it is empty. When I try to commit, I get the following error from SqlDev.
UPDATE "MDD"."MDD_FIGURE" SET WHERE ROWID = 'AAAOeWAAEAAABAlAAz' AND ORA_ROWSCN = '358136842'
One error saving changes to table "MDD"."MDD_FIGURE":
Row 14: ORA-01410: invalid ROWID
I use rollback to restore the record to it's previous state.
If I load one of the successfully loaded .gifs into the same field, it loads perfectly as follows.
UPDATE "MDD"."MDD_FIGURE" SET WHERE ROWID = 'AAAOeWAAEAAABAoAAp' AND ORA_ROWSCN = '358136522'
Commit Successful
It appears the 28 gifs have a problem. I've re-scanned them, with the same results. They are just small scanned line map images from our earlier publications. They view properly in several different graphics programs and I can't find anything wrong with them.
I notice that the ROWID's are different while the ORA_ROWSCN's are the same - but what is the significance of that?
Any suggestions as to what is happening and what I can do about it?
Thanks for any help you can give me.
glenn
(Database is 10R2 and sqldev is the most recent one)
Edited by: gconley on Sep 25, 2008 9:51 PMsolved it myself - problem was with the gif
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How to add a new data element for existing table filed(Primary key field)
Hi Experts,
How to add a new data element for existing table field(Primary key field)
For this filed ther is no foreign key relation ships and even check table.
while activating table it is giving message like below.
can you help any one to solve this and wil steps to add new dataelement for existing primary key filed of a table.
Check table (NAMING SPACE/TABLE NAME(EX:/TC/VENDOR)) (username/19.02.10/03:29)
Primary key change not permitted for value table /TC/VENDOR
Check on table /TC/VENDOR resulted in errors
Thanks
RaviHi,
Easiest way is to download the table eg into an Excel table (if possible) or text table. Drop the table from the database. Build your table with the new key field. Build the database table again and fill it.
You can do it also over the database into a new table. Drop the old one. Build the enhanced one and fill it. Afterwards drop your (temporary) table.
Maybe there are other ways, but this works.
Success,
Rob -
Migrating a table with BLOB field from SQL-Server to Oracle.
Hi All,
I'm trying to create a Class to migrate data from SQL-Server to Oracle, this table has a BLOB field.
The Code:
package br.com.infox;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.Statement;
public class Migrador {
public static void main(String[] args){
try {
// Conex�o com o SQL Server
Class.forName("net.sourceforge.jtds.jdbc.Driver");
Connection conSQL = DriverManager.getConnection ("jdbc:jtds:sqlserver://10.10.2.9/protocolo","prot","suinf2002");
// Conex�o com o Oracle
Class.forName("oracle.jdbc.driver.OracleDriver");
Connection conORA = DriverManager.getConnection ("jdbc:oracle:thin:@10.10.2.2:1521:des","protocolo","protocolo");
Statement stSQL = conSQL.createStatement();
String querySQL = "SELECT * FROM DOC_INCORPORADO";
ResultSet rsSQL = stSQL.executeQuery(querySQL);
String queryORA = "INSERT INTO PROT_VITALICIAMENTO (NU_PROCESSO, ANO_PROCESSO, CD_USUARIO, DT_ENVIO," +
"DE_COMPLEMENTO, NM_ARQUIVO, ARQUIVO, NU_SEQ, CD_TIPO_ARQUIVO, MES, ANO) VALUES (?,?,?,?,?,?,?,?,?,?,?)";
PreparedStatement psORA = conORA.prepareStatement(queryORA);
while (rsSQL.next()){
System.out.println("Linha: " + rsSQL.getRow());
psORA.setInt(1, rsSQL.getInt("nu_processo"));
psORA.setInt(2, rsSQL.getInt("ano_processo"));
psORA.setInt(3, rsSQL.getInt("cd_usuario"));
psORA.setDate(4, rsSQL.getDate("dt_incorporacao"));
psORA.setString(5, rsSQL.getString("complemento"));
psORA.setString(6, rsSQL.getString("nm_arquivo"));
psORA.setBinaryStream(7, rsSQL.getBinaryStream("arquivo"), (int)rsSQL.getBlob("arquivo").length());
psORA.setInt(8, rsSQL.getInt("num_seq"));
psORA.setInt(9, rsSQL.getInt("cd_tipo_arquivo"));
psORA.setInt(10, rsSQL.getInt("mes"));
psORA.setInt(11, rsSQL.getInt("ano"));
psORA.executeUpdate();
stSQL.close();
psORA.close();
conORA.close();
conSQL.close();
} catch (Exception e){
e.printStackTrace();
The ERROR:
java.sql.SQLException: Exce��o de E/S: Connection reset
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:179)
at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:334)
at oracle.jdbc.ttc7.TTC7Protocol.handleIOException(TTC7Protocol.java:3668)
at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1986)
at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteFetch(TTC7Protocol.java:1119)
at oracle.jdbc.driver.OracleStatement.executeNonQuery(OracleStatement.java:2191)
at oracle.jdbc.driver.OracleStatement.doExecuteOther(OracleStatement.java:2064)
at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2989)
at oracle.jdbc.driver.OraclePreparedStatement.executeUpdate(OraclePreparedStatement.java:658)
at br.com.infox.Migrador.main(Migrador.java:41)
What's the problem of these Class?
Thank's.Depending on the version of the database you have, you could use transportable tablespaces.
http://download-east.oracle.com/docs/cd/B10501_01/server.920/a96524/c04space.htm#9370 -
Error displaying a jpg file loaded into a table with blob field
This may not be the correct forum for this question, but if it isn't could someone direct me to the correct one.
I have created a table with a blob field in which I have loaded a jpg image. This appeared to work correctly, but when I try to display the image in internet explorer it comes back and tells me that it doesn't recognize the file type. Enclosed is the table create, load, and display pl/sql code. Can anyone tell me what I am doing wrong. Thanks. For the mime/header I used owa_util.mime_header('images/jpg') because my image is a jpg file.
The database is 10g
-- Create table
create table PHOTOS
IMAGEID NUMBER(10),
IMAGE BLOB,
IMAGE_NAME VARCHAR2(50)
load image
CREATE OR REPLACE PROCEDURE load_file ( p_id number, p_photo_name in varchar2) IS
src_file BFILE;
dst_file BLOB;
lgh_file BINARY_INTEGER;
BEGIN
src_file := bfilename('SNAPUNCH', p_photo_name);
-- insert a NULL record to lock
INSERT INTO photos (imageid, image_name, image)
VALUES (p_id , p_photo_name, EMPTY_BLOB())
RETURNING image INTO dst_file;
-- lock record
SELECT image
INTO dst_file
FROM photos
WHERE imageid = p_id AND image_name = p_photo_name
FOR UPDATE;
-- open the file
dbms_lob.fileopen(src_file, dbms_lob.file_readonly);
-- determine length
lgh_file := dbms_lob.getlength(src_file);
-- read the file
dbms_lob.loadfromfile(dst_file, src_file, lgh_file);
-- update the blob field
UPDATE photos
SET image = dst_file
WHERE imageid = p_id
AND image_name = p_photo_name;
-- close file
dbms_lob.fileclose(src_file);
END load_file;
display image
PROCEDURE display_image(p_id NUMBER) IS
Photo BLOB;
v_amt NUMBER DEFAULT 4096;
v_off NUMBER DEFAULT 1;
v_raw RAW(4096);
BEGIN
-- Get the blob image
SELECT image
INTO Photo
FROM PHOTOS
WHERE IMAGEID = p_id;
owa_util.mime_header('images/jpg');
BEGIN
LOOP
-- Read the BLOB
dbms_lob.READ(Photo, v_amt, v_off, v_raw);
-- Display image
htp.prn(utl_raw.cast_to_varchar2(v_raw));
v_off := v_off + v_amt;
v_amt := 4096;
END LOOP;
dbms_lob.CLOSE(Photo);
EXCEPTION
WHEN NO_DATA_FOUND THEN
NULL;
END;
END;
The url I enter is: http://webdev:7777/tisinfo/tis.tiss0011.Display_Image?p_id=1Just a little more information. When I enter owa_util.mime_header('image/jpeg') I can't display the file. It just shows up with a red x for the file.
When I enter owa_util.mime_header('image/jpg') it displays the file, but in the format
¿¿¿¿JFIF¿¿-Intel(R) JPEG Library, version [2.0.16.48]¿¿C
This is the way I would expect it to look if I opened it with Notepad, or an application that doesn't recognize jpg files. Can anyone tell me what I am doing wrong?? Thanks. -
Add a new field to an existing Condition table
How can I add a new field to an existing condition table?
I have table 971 and I want to add INCOTERMS (INCO1) to this existing table but do not see how to add it.
ThanksHi Vicky,
I dont think you can add new fields to the condition table once you have activated the condition table.
SAP says you can only make limited changes to the condition table, like changing the description, fast entry screen, header and footer fields, but not able to add new fields to the table, and I think that is the correct approch or else for the same table you will have two sets of condition records.
Please refer to the below link:
http://help.sap.com/saphelp_erp60_sp/helpdata/en/de/7a8534c960a134e10000009b38f83b/frameset.htm
What you can do is create a new condition table with additional field and assign this table before the currently used table in the access sequence.
Hope this helps.
Regards
Raj -
Add a new field to existing Table
Hi , We want to add a new field to existing table from ECC and populate historical data .
We have already extracted data from ECC to VBAK Table . We have to add a new field - Incoterms in HANA . This field exists in ECC .
Please guide.Hi Vicky,
I dont think you can add new fields to the condition table once you have activated the condition table.
SAP says you can only make limited changes to the condition table, like changing the description, fast entry screen, header and footer fields, but not able to add new fields to the table, and I think that is the correct approch or else for the same table you will have two sets of condition records.
Please refer to the below link:
http://help.sap.com/saphelp_erp60_sp/helpdata/en/de/7a8534c960a134e10000009b38f83b/frameset.htm
What you can do is create a new condition table with additional field and assign this table before the currently used table in the access sequence.
Hope this helps.
Regards
Raj
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