I want to update a blob column, containing images, with a HEX string (HEX representation of the image) in Oracle 10g. Unfortunately, the only thing I'm allowed to use is a simple Query, no procedures or anything else...
I've been trying with this query, but with no success (PLSQL says it's not an image):
update table t
set t.photo = (hextoraw('HEXSTRING'))
When used this way it works, but neither pl/sql recognises it as image, nor the program that should read from it. I guess it's some kind of type casting issue, but I'm not that familiar with OrSQL types and casting.
Any suggestions will be greatly appreciated!!!
your approach is right. its possibly the input HEX that is wrong? how are you getting it.
for example:
SQL> create table img (img blob);
Table created.
SQL> insert into img values (hextoraw('47494638396120002000f700000000000000330000660000990000cc0000ff002b00002b33002b66002b99002bcc002bff0055000055330055660055990055cc0055ff008
0000080330080660080990080cc0080ff00aa0000aa3300aa6600aa9900aacc00aaff00d50000d53300d56600d59900d5cc00d5ff00ff0000ff3300ff6600ff9900ffcc00ffff3300003300333300663300993300cc3300f
f332b00332b33332b66332b99332bcc332bff3355003355333355663355993355cc3355ff3380003380333380663380993380cc3380ff33aa0033aa3333aa6633aa9933aacc33aaff33d50033d53333d56633d59933d5cc3
3d5ff33ff0033ff3333ff6633ff9933ffcc33ffff6600006600336600666600996600cc6600ff662b00662b33662b66662b99662bcc662bff6655006655336655666655996655cc6655ff668000668033668066668099668
0cc6680ff66aa0066aa3366aa6666aa9966aacc66aaff66d50066d53366d56666d59966d5cc66d5ff66ff0066ff3366ff6666ff9966ffcc66ffff9900009900339900669900999900cc9900ff992b00992b33992b66992b9
9992bcc992bff9955009955339955669955999955cc9955ff9980009980339980669980999980cc9980ff99aa0099aa3399aa6699aa9999aacc99aaff99d50099d53399d56699d59999d5cc99d5ff99ff0099ff3399ff669
9ff9999ffcc99ffffcc0000cc0033cc0066cc0099cc00cccc00ffcc2b00cc2b33cc2b66cc2b99cc2bcccc2bffcc5500cc5533cc5566cc5599cc55cccc55ffcc8000cc8033cc8066cc8099cc80cccc80ffccaa00ccaa33cca
a66ccaa99ccaaccccaaffccd500ccd533ccd566ccd599ccd5ccccd5ffccff00ccff33ccff66ccff99ccffccccffffff0000ff0033ff0066ff0099ff00ccff00ffff2b00ff2b33ff2b66ff2b99ff2bccff2bffff5500ff553
3ff5566ff5599ff55ccff55ffff8000ff8033ff8066ff8099ff80ccff80ffffaa00ffaa33ffaa66ffaa99ffaaccffaaffffd500ffd533ffd566ffd599ffd5ccffd5ffffff00ffff33ffff66ffff99ffffccffffff0000000
0000000000000000021f904010000fc002c00000000200020000008ff00371429b2619fc183080dbe899630e140810407366c2870e1c47d103764bc887020135017230e8cc8f1601168251f1661387119ca7dd194edabb3a
c24cb92758c286482b188c5921ca31154267483b29120815e7c03d10e44262f955e84080ad4c88755056e80131528c1a4a0b41601ab72a5d20d490d5a458b30ec489940d31eacda10d4929a0da325d5bb4fae5abf7db94e7
c53446161b673bfb68d28f8a0d0224405421b4896aa4168102923842370099c8146b4561d29da6d91253783d68908ca944881a309323dcd59e24168b535f7150b566051a204bb46232cd0cee2b18bf77d36b87a22b437804
1194f08121a5c972d3f3634155d296ecb8991275156ba6cb568b51111bb2e28f539d5b5a46317967a713893919f05d2cf4b78a5e468beed979032f715449861023a07074c7b016692562595a7547a22a5765b6d6791f6d04
5e51134a158247134d984230504003b'));
1 row created.
SQL> commit;
Commit complete.
then in my PL/SQL IDE (pl/sql developer) i see..
Related
I have a database table with the column txt as clob. Now I'm trying to display the table with an interactive report in oracle apex. But I get this error:
ora-06502 pl/sql numeric or value error character string buffer too small
What is the problem?
I can't find documentation to confirm this, but I suspect that under the covers the Interactive Report is loading the CLOB data into a PL/SQL VARCHAR2 variable, which will be limited to 32K bytes. As long as your CLOB data doesn't exceed that it's probably OK, but if bigger you will get the ORA-06502 error.
Rather than try to show the full CLOB contents in the report (which won't look good anyway for large amounts), you could show perhaps the first few hundred characters and have a link to display the rest in a modal page (for example). There you can read the CLOB data in chunks and use htp.p to write those chunks out in a PL/SQL region. Alternatively the link could download the CLOB data to a file.
I am trying to attempt a bulk insert by using a FORALL in the Procedure .
I have tried the below steps to create the procedure :
**CREATE TYPE SECID_TABLE as TABLE OF VARCHAR2 INDEX BY NUMBER;**
CREATE PROCEDURE ASP_STOCK
(**p_secid IN SECID_TABLE**
) as
BEGIN
..
END;
But the above two statements do not compile. I am rather new to oracle and use aqua studio which doesnt seem to be verbose on the error statement.
Can someone please guide me?
There are two problems here.
The first problem is that you can't create an index-by table with an index type of NUMBER. SQLFiddle here Change the index type to PLS_INTEGER.
But even if you do THAT you're still going to get errors because an index-by table like this is a PL/SQL-only construct. SQLFiddle here.
You're going to have to do something else. Try an unindexed TABLE type, which is allowed at schema level. SQLFiddle here
Best of luck.
First of all usually I am working with MSSQL. But I have a stored procedure in MSSQL, which I need to use in Oracle now and since I am absolutely new to Oracle I have no idea at all how to do it correct.
I needed to use user defined table types in my MS SQL stored procedure because I am using "logical" tables in my stored procedure, which I also need to pass them to a dynamic sql statement within this procedure (using column names of "physical" tables as variables/parameters).
I've started to add the oracle function in a package I made before for another function. It looks like
TYPE resultRec IS RECORD
(
[result columns]
);
TYPE resultTable IS TABLE OF resultRec;
Function MyFunctionName([A LOT PARAMETERS]) RETURN resultTable PIPELINED;
I also described the layout of the tables (the user defined table types in MSSQL), which I want to use within this function in this package header.
So far so good, but now I don't really know where I have to declare my table variables or user defined table types. I also tried to put them in the package header, but if I am trying to use these tables in the package body, where I am describing my function, Oracle tells met, that the table or view does not exist.
I also tried it to describe the tables within the package body or in the block of my function, which looks like that:
FUNCTION MyFunctionName
(
[MyParameters]
)
RETURN resultTable PIPELINED is rec resultrec;
TYPE tableVariableA IS TABLE OF tableRecA;
TYPE tableVariableB IS TABLE OF tableRecB;
BEGIN
INSERT INTO tableVariableA
SELECT ColumnA, ColumnB FROM physicalTable WHERE[...];
[A LOT MORE TO DO...]
END;
But in this case Oracle also tells me, that it doesn't know the table or view.
I also tried a few more things, but at the end I wasn't able to tell Oracle what table it should use...
I would appreciate every hint, which helps me to understand how oracle works in this case. Thanks a lot!
You can't insert into a collection (e.g. PL/SQL table). You can use the bulk collect syntax to populate the collection:
SELECT ColumnA, ColumnB
BULK COLLECT INTO tableVariableA
FROM physicalTable
WHERE [...];
However, you might want to check this is an appropriate approach, since SQL Server and Oracle differ quite a bit. You can't use PL/SQL tables in plain SQL (at least prior to 12c), even inside your procedure, so you might need a schema-level type rather than a PL/SQL type, but it depends what you will do next. You might not really want a collection at all. Trying to convert T-SQL straight to PL/SQL without understanding the differences could lead you down a wrong path - make sure you understand the actual requirement and then find the best Oracle mechanism for that.
I have a long raw column in an Oracle table. Insert with select is not working because of the long raw column which is part of my select statement as well. Basically I am trying to insert to insert history row with couple of parameters changed. Hence I was thinking of using PL/SQL in Oracle. I have no experience in PL/SQL neither I got anything after googling for couple of days. Can anyone help me with a sample PL/ SQL for my problem ? Thanks in advance !!!
LONG and LONG RAW datatypes are deprecated, and have been for many years now. You really are much better off getting away from them.
Having said that, if you're using PL/SQL, you will be limited to 32,760 bytes of data, which is the max that the LONG RAW PL/SQL datatype will hold. However, the LONG RAW database datatype, can hold up to 2GB of data. So, if any rows in your table contain data longer than 32,760 bytes, you will not be able to retrieve it using PL/SQL. This is a fundamental limitation of LONG and LONG RAW datatypes, and one of the reasons Oracle has deprecated their use.
In that case, the only options are Pro*C or OCI.
More information can be found here:
http://download.oracle.com/docs/cd/B19306_01/appdev.102/b14261/datatypes.htm#CJAEGDEB
Hope that helps.
You can work with a LONG RAW column directly in PL/SQL if your data is limited to 32kB:
FOR cc IN (SELECT col1, col2... col_raw FROM your_table) LOOP
INSERT INTO your_other_table (col1, col2... col_raw)
VALUES (cc.col1, cc.col2... cc.col_raw);
END LOOP;
This will fail if any LONG RAW is larger than 32k.
In that case you will have to use another language. You could use java since it is included in the DB. I already answered a couple of questions on SO with LONG RAW and java:
Copying data from LOB Column to Long Raw Column (will work with LONG RAW to LONG RAW too, just replace the UPDATE with an INSERT)
Get the LENGTH of a LONG RAW
In any case as you have noticed it is a pain to work with this data type. If converting to LOB is not possible you will have to use a workaround.
Platform: Oracle
Language: PL/SQL
Issue: Want to output a procedure OUT cursor into the SQLDeveloper SQLWosksheet.
Anyone know how to use the Oracle "Select * from Table( PipelinedFunction( Param ) ) " to check procedure code output cursors?
I am using Crsytal Reports off of an Oracle stored procedure. Crystal requires that a procedure return a cursor, which it fetchs and reads.
The procedure code I have is currently working, but I want to find the easiest way to view the effects of changes to the procedure code. I have SQLDeveloper available, and I'm doing my creation and sql testing in that. I would like to get a quick result visible in the SQL Developer Query Result window ("SQL Worksheet").
Is there a (simple) way to use a Function to read the cursor from the procedure? (and pipe that out to the Table function?)
Convoluted, I know, but I deal best when I can just see the results of code changes. If I can view the record results directly, it will speed up development of the report.
I know of the Table function and a little about pipelining in Oracle. I know a little about cursors in general and sys_refcursor. I know diddly about types and why I need them. (Isn't sys_regCursor supposed to get us away from that?)
The current procedure does an adequate but ungraceful series of queries, inserts to global temp tables (GTT), joins from GTT and original tables, more inserts, and more self-joins and then SELECTS the results into the OUT cursor. I might be able to do better relying on just cursors and such, but the current method is good enough to get results to the report.
I think I can handle SQL pretty well (for our purposes), but I am not an Oracle-specific developer... but I need help.
Anybody run across this? The whole idea was to speed my development for the procedure code, but I've spent a couple of days looking for a way to just get at the output... not what I had in mind.
Update:
I have tried some hare-brained schemes based on slivers that I've seen on the web... such as
Create or replace FUNCTION GET_BACKPLANE (
Node VARCHAR2 ) RETURN SYS_REFCURSOR
AS
RESULTS SYS_REFCURSOR;
BEGIN
Open Results for
Select Backplane(Results, Node) from Dual ;
... etc.
and
Create or replace Function GET_BACKPLANE (
NODE VARCHAR2 ) RETURN My_Table_Stru%ROWTYPE PIPELINED
AS
BEGIN ...
I don't think that Oracle is even considering letting me re-reference the output cursor from the procedure ("Results" is a sys_refcursor that holds the results of the last SELECT in the procedure). I don't know how to define it, open it, and reference it from the procedure.
I never got to the place where I could try
SELECT * FROM TABLE(GET_BACKPLANE( ... etc )
Sorry for any typos and bad Oracle Grammar... it's been a long several days.
SQL Developer allows us to use SQL*Plus commands in the Worksheet. So all you need to do is define a variable to hold the output of the ref cursor.
I may have misinterpreted the actual code you want to run but I'm assuming your actual program is a procedure Backplane(Results, Node) where results is an OUT parameter of datatype sys_refcursor and node is some input parameter.
var rc refcursor
exec Backplane(results=>:rc, Node=>42)
print rc
The output of the print statement is written to the Script Output pane.
Note that the use of SQL*Plus commands means we have to use the Run Script option F5 rather than execute statement.
Thanks for the help. In the end, I wound up brute-force-ing it...
Step by step:
Make a query, test a query,
create a global temp table from the structure,
add code to make another query off of that GTT, test the query,
create a global temp table from the structure,
etc.
In the end, I wound up running (anonymous block) scripts and checking the GTT contents at every stage.
The last part was to use the same last query from the original procedure, stuffing everything into the Cursor that crystal likes...
tomorrow, I test that.
But, I'll just force it through for the next procedure, and get it done in a day and a half instead of 2+ weeks (embarrassed).
Thanks,
Marc