First of all i am very new with database systems. i am trying to store an image on my db (only for testing purposes) however I cannot do. There is a problem in the code I use. Can you please tell me what is wrong with the following code?
Create DIRECTORY temp as 'c:\temp';
DECLARE
src_lob BFILE := BFILENAME('temp', 'IMAGE.png');
dest_lob BLOB;
BEGIN
INSERT INTO lob_table VALUES(2, EMPTY_BLOB())
RETURNING doc INTO dest_lob;
DBMS_LOB.OPEN(src_lob, DBMS_LOB.LOB_READONLY);
DBMS_LOB.LoadFromFile( DEST_LOB => dest_lob,
SRC_LOB => src_lob,
AMOUNT => DBMS_LOB.GETLENGTH(src_lob) );
DBMS_LOB.CLOSE(src_lob);
COMMIT;
END;
When I try to run it, I have the following error: ORA-00911: invalid character
What is wrong here?
Thannks in advance.
Never done it so I'm not certain, but I think the DIRECTORY has to be on the server, not the client.
(You may be running SQL*Plus on the server I guess)
Related
I have a db function that populates data from active directory into a table in the database. It works fine without giving any errors.
Next step is to schedule a job in db so that it is run everyday automatically. When I do that, I get this error: ORA-01008: not all variables are mapped
The code I am using in the PL/SQL block is this:
DECLARE
v_Return VARCHAR2(200);
BEGIN
v_Return := PRE_JOB_FUNCTION();
:v_Return := v_Return;
END;
I think that the issue is that v_Return needs to be Null to begin the execution of this function but I am confused how to do that. Can someone please help?
I use DB::setDatabaseName(<database name>) to reset the databasename, then I use DB::table(<table name>)->get() to retrieve data. However laravel does not change to new database.
This is my error message:
Illuminate/Database/QueryException with message 'SQLSTATE[42P01]:
Undefined table: 7 ERROR: relation "t" does not exist LINE 1: select
* from "t" ^ (SQL: select * from "t")'
The table t is in another database. I think when I use DB::setDatabaseName(<database name>) it would work.
Thank you for your help!
I don't know your database of detail information, but this help you to check database have changed.
// current database is 'db_1'
echo DB::getDatabaseName(); // return db_1
// Set database to 'db_2'
DB::setDatabaseName('db_2');
// If success, should return 'db_2' now.
echo DB::getDatabaseName();
// Check database tables.
DB::select('show tables');
I was facing a similar issue.
But changing the database solely might not always work.
You could use config->set() like so
config()->set('database.connections.mysql', $database_name);
But in my case I had to reconnect the database to change it dynamically.
So maybe this one works for the OP.
\DB::disconnect();
config()->set('database.pgsql.database', $database_name); // psgl = Postgress
\DB::reconnect();
You'll find more info here Laravel 6 config()->get('database.connections.mysql') not matching DB:connection()
Hope it helps
I'm doing multi-homing SymmetricDS with 2 nodes (server and client) and single MySQL database, and I do transformation table and column, but at client node appear an error "java.lang.IllegalArgumentException: No enum constant org.jumpmind.symmetric.io.data.transform.ColumnPolicy.specified".
I (un)delete column_policy from sym_transform_table and nothing happened. What's wrong?
this is going to fix the problem:
update sym_transform_table
set column_policy = 'SPECIFIED'
where column_policy = 'specified';
commit;
I got the answer, I should make column_policy at SYM_TRANSFORM_TABLE in UPPERCASE MODE. And also apply in other enum.
Okay so basically I've been working on my computing project for a while now and I've got 90% of it working however I'm having a problem with Delphi where is says that my database is not connected/ there is a problem connecting however I've already tried writing the information to the screen and this showed me that the items I was looking to pick up where in fact being picked up so the failure is when the items are being input in to the database. This however shouldn't be happening as the System already has database information displayed from that table and the user can physically select things from the database tables within the program however when trying to store the information back into the database it just breaks. Me and my computing teacher can not work it out, any help would be appreciated.
The problem appears on the new orders page. If you'd rather look at the system then you can download it from here https://drive.google.com/folderview?id=0B_iRfwwM9QpHVXJnSkx4U1FjMlk&usp=sharing
procedure Tform1.btnSaveClick(Sender: TObject);
var orderID:integer;
count:integer;
begin
try
//save into the order table first
tblOrder.Open;
tblOrder.Insert;
tblOrder.FieldByName('CustomerID').value:= strtoint(cboCustomer.Text);
tblOrder.Close;
tblOrder.Open;
tblOrder.Last;
orderID:=tblOrder.FieldByName('OrderID').Value;
showmessage(inttostr(orderID));
for count := 1 to nextFree-1 do
begin
if itemOrdered[count,1]<>0 then
begin
tblOrderLine.Open;
tblOrderLine.AppendRecord([orderID, itemOrdered[count,1],itemOrdered[count,2]]);
end;
end;
showmessage('The order has been saved');
except
showmessage('There was a problem connecting to the database');
end;
end;
You're doing far too much open, do something, close, open. Don't do that, because it's almost certain that is the cause of your problem. If the data is already being displayed, the database is open already. If you want it to keep being displayed, the database has to remain open.
I also removed your try..except. You can put it back in if you'd like; I personally like to allow the exception to occur so that I can find out why the database operation failed from the exception message, rather than hide it and have no clue what caused it not to work.
procedure Tform1.btnSaveClick(Sender: TObject);
var
orderID: integer;
count: integer;
begin
//save into the order table first
tblOrder.Insert;
tblOrder.FieldByName('CustomerID').value:= strtoint(cboCustomer.Text);
tblOrder.Post;
orderID:=tblOrder.FieldByName('OrderID').Value;
showmessage(inttostr(orderID));
for count := 1 to nextFree-1 do
begin
if itemOrdered[count, 1] <> 0 then
begin
tblOrderLine.AppendRecord([orderID, itemOrdered[count,1],itemOrdered[count,2]]);
tblOrderLine.Post;
end;
end;
showmessage('The order has been saved');
end;
I'm trying to run the following UPDATE query from a python script (note I've removed the database info):
print 'Connecting to db for update query...'
db = pyodbc.connect('DRIVER={FreeTDS};SERVER=<removed>;DATABASE=<removed>;UID=<removed>;PWD=<removed>')
cursor = db.cursor()
print ' Executing SQL queries...'
for i in range(len(data)):
sql = '''
UPDATE product.sanction
SET action_summary = '{action_summary}'
WHERE sanction_id = {sanction_id};
'''.format(sanction_id=data[i][0], action_summary=data[i][1])
cursor.execute(sql)
cursor.close()
db.commit()
db.close()
However, it hangs indefinitely, no error.
I'm new to pyodbc, but it should be setup correctly considering I'm having no problems performing SELECT queries. I did have to call CAST for SELECT queries (I've cast sanction_id AS INT [int identity on the database] and action_summary AS TEXT [nvarchar on the database]) to properly populate data, so perhaps the problem lies somewhere there, but I don't know where to start debugging. Converting the text to NVARCHAR didn't do anything either.
Here's an example of one of the rows in data:
(2861357, 'Exclusion Program: NonProcurement; Excluding Agency: HHS; CT Code: Z; Exclusion Type: Prohibition/Restriction; SAM Number: S4MR3Q9FL;')
I was unable to find my issue, but I ended up using QuerySets rather than running an UPDATE query.