I am trying to update notes in a table to archive some files. I've generated the SQL script and am having a problem because of the accounts which have a Null value in the notes. I would like my note update to take place whether there is a Note or a Null in the current note field. Below is my SQL statement:
update dbo.CaseTable
set Quick = 'Case files have been archived. To have file access restored, please enter a helpdesk ticket with the full case name. '
+ convert(varchar(255),Quick)
where CaseID = 1
Try this:
update dbo.CaseTable
set Quick = 'Case files have been archived. To have file access restored, please enter a helpdesk ticket with the full case name. '
+ convert(varchar(255), ISNULL(Quick, ''))
where CaseID = 1
You can use CONCAT function. Null values are implicitly converted to an empty string.
Try this:
update dbo.CaseTable
set Quick = CONCAT('Case files have been archived. To have file access restored, please enter a helpdesk ticket with the full case name. ' , CAST(Quick AS varchar(255)))
where CaseID = 1
Update dbo.Case table
Set quick='case files has been archived.
To have files access restored,please enter
Helpdesk ticket with the fullcase name.'
+convert(varchar(255),ISNULL(Quick,"))
Where caseID=1
Related
I referred to this link create a download zip button to download files in zip format in Oracle apex latest version 22.2. It is working fine without any issues but only concern is; it downloads all the files in one zip file. Whereas my requirement is to include a checkbox on a report (either IG or IR) and to download selected files in one zip file.
Below is the table I am referring to. Its from Oracle apex sample files upload and download.
select
ID,
ROW_VERSION_NUMBER,
PROJECT_ID,
FILENAME,
FILE_MIMETYPE,
FILE_CHARSET,
FILE_BLOB,
FILE_COMMENTS,
TAGS,
CREATED,
CREATED_BY,
UPDATED,
UPDATED_BY
from EBA_DEMO_FILES
I tried searching over the internet and found few links pointing to APEX_ZIP, PL/SQL compress blob etc. But could not see any demo or working model similar to the link I provided above.
If anybody has working demo or blog,I request to share it. Many thanks.
Update: As suggested by Koen Lostrie, I am updating Page process code below:
DECLARE
l_id_arr apex_t_varchar2;
l_selected_id_arr apex_t_varchar2;
var_zip blob;
BEGIN
-- push all id values to an array
FOR i IN 1..APEX_APPLICATION.G_F03.COUNT LOOP
apex_string.push(l_id_arr,APEX_APPLICATION.G_F03(i));
FOR j IN 1 .. APEX_APPLICATION.G_F01.COUNT LOOP
IF APEX_APPLICATION.G_F01(j) = APEX_APPLICATION.G_F03(i) THEN
-- push all selected emp_id values to a 2nd array
apex_string.push(l_selected_id_arr,APEX_APPLICATION.G_F03(i));
END IF;
END LOOP;
END LOOP;
-- Create/clear the ZIP collection
APEX_COLLECTION.CREATE_OR_TRUNCATE_COLLECTION(
p_collection_name => 'ZIP');
-- Loop through all the files in the database
begin
for var_file in (select fi.filename, fi.file_blob, pr.project
from eba_demo_files fi
inner join eba_demo_file_projects pr on fi.project_id = pr.id
where fi.id in (SELECT column_value FROM table(apex_string.split(apex_string.join(l_selected_id_arr,':'),':'))))
loop
-- Add each file to the var_zip file
APEX_ZIP.ADD_FILE (
p_zipped_blob => var_zip,
p_file_name => var_file.project || '/' || var_file.filename,
p_content => var_file.file_blob );
end loop;
exception when no_data_found then
-- If there are no files in the database, handle error
raise_application_error(-20001, 'No Files found!');
end;
-- Finish creating the zip file (var_zip)
APEX_ZIP.FINISH(
p_zipped_blob => var_zip);
-- Add var_zip to the blob column of the ZIP collection
APEX_COLLECTION.ADD_MEMBER(
p_collection_name => 'ZIP',
p_blob001 => var_zip);
END;
Once page process is done, follow step 3 and 4 from the link provided in OP.
Below is the updated query:
select
ID,
ROW_VERSION_NUMBER,
PROJECT_ID,
FILENAME,
FILE_MIMETYPE,
FILE_CHARSET,
FILE_BLOB,
FILE_COMMENTS,
TAGS,
CREATED,
CREATED_BY,
UPDATED,
UPDATED_BY,
APEX_ITEM.CHECKBOX(1,ID) checkbox,
APEX_ITEM.TEXT(2,FILENAME) some_text,
APEX_ITEM.HIDDEN(3,ID) hidden_empno
from EBA_DEMO_FILES
Big Thanks to Koen Lostrie.
All credits goes to Koen Lostrie.
Thanks,
Richa
This is just an answer to the last comment - the base question was answered in the comments. The question in the comment is "how do I include APEX_ITEM.HIDDEN columns in my report without hiding the columns".
When the columns are hidden in the report, they're not rendered in the DOM, so the values do not exist when the form is posted. That is the reason you're getting the error.
However, take a step back and check what APEX_ITEM.HIDDEN generates. Add a column of type APEX_ITEM.HIDDEN to the report and inspect the column in the browser tools. It generates an input element of type "hidden", so the value is not shown in the report. So to include the column in your report but not make it visible on the screen, just concatenate it to an existing other column:
In your case, with the select from the question that would be:
select
APEX_ITEM.HIDDEN(3,ID) || APEX_ITEM.HIDDEN(2,FILENAME) || ID,
ROW_VERSION_NUMBER,
PROJECT_ID,
FILENAME,
FILE_MIMETYPE,
FILE_CHARSET,
FILE_BLOB,
FILE_COMMENTS,
TAGS,
CREATED,
CREATED_BY,
UPDATED,
UPDATED_BY,
APEX_ITEM.CHECKBOX(1,ID) checkbox
from EBA_DEMO_FILES
Note that filename can also be in a hidden element.
I am attempting what I thought was a relatively easy thing. I use a SQL task to look for a filename in a table. If it exists, do something, if not, do nothing.
Here is my setup in SSIS:
My SQL Statement in 'File Exists in Table' is as follows, and ResultSet is 'Single Row':
SELECT ISNULL(id,0) as id FROM PORG_Files WHERE filename = ?
My Constraint is:
When I run it, there are no files in the table yet, so it should return nothing. I've tried ISNULL and COALESCE to set a value. I receive the following error:
Error: 0xC002F309 at File Exist in Table, Execute SQL Task: An error occurred while assigning a value to variable "id": "Single Row result set is specified, but no rows were returned.".
Not sure how to fix this. The ISNULL and COALESCE are the things suggestions found in SO and on MSDN
Try changing your SQL statement to a COUNT then your comparison expression would read #ID > 0. So, if you have files that match your pattern the count will be greater than 0 if there are no files it will return 0.
SELECT COUNT(id) as id FROM PORG_Files WHERE filename = ?
If you want to check if a row exists then you should use Count as #jradich1234 mentioned.
SELECT COUNT(*) as id FROM PORG_Files WHERE filename = ?
If you are looking to check if a row exists and to store the id in a variable to use it later in the package, first you have to use TOP 1 since you selecting a single row result set and you can use a similar logic:
DECLARE #Filename VARCHAR(4000) = ?
IF EXISTS(SELECT 1 FROM PORG_Files WHERE filename = #Filename)
SELECT TOP 1 id FROM PORG_Files WHERE filename = #Filename
ELSE
SELECT 0 as id
Then if id = 0 then no rows exists.
It just needs to use UNION another row empty
always return a value
Like it if work for you
SELECT foo As nameA, fa AS nameB
UNION ALL
SELECT NULL AS nameA, NULL AS nameB
And then you can validated (line) contrained if var is null no allow
Can anyone help me with creating a replica in EXASOL i.e. I need to copy all the tables including Views,Functions and Scripts from one schema to another schema in the same server.
For Eg.: I want all the data from Schema A to be copied not moved to Schema B.
Many thanks.
Thank you wildraid for your suggestion :)
In-order to copy DDL of all the tables in schema, I've got a simple way that will give us the DDLs for all the tables :
select t1.CREATE_STATEMENT||t2.PK||');' from
(Select C.COLUMN_TABLE,‘CREATE TABLE ’ || C.COLUMN_TABLE ||'(' || group_concat( ‘“’||C.COLUMN_NAME||'“' || ' ' || COLUMN_TYPE || case when (C.COLUMN_DEFAULT is not null
and C.COLUMN_IS_NULLABLE=‘true’) or(C.COLUMN_DEFAULT<>‘NULL’ and C.COLUMN_IS_NULLABLE=‘false’) then
' DEFAULT ' || C.COLUMN_DEFAULT end || case when C.COLUMN_IS_NULLABLE=‘false’ then ' NOT NULL ' end
order by column_ordinal_position) CREATE_STATEMENT
from EXA_ALL_COLUMNS C
where
upper(C.COLUMN_SCHEMA)=upper(‘Source_Schema’) and column_object_type=‘TABLE’
group by C.COLUMN_SCHEMA, C.COLUMN_TABLE order by C.COLUMN_TABLE ) t1 left join
(select CONSTRAINT_TABLE,‘, PRIMARY KEY (’ ||group_concat(‘“’||COLUMN_NAME||'“' order by ordinal_position) || ‘)’ PK
from EXA_ALL_CONSTRAINT_COLUMNS where
constraint_type=‘PRIMARY KEY’ and upper(COnstraint_SCHEMA)=upper(‘Source_Schema’) group by CONSTRAINT_TABLE ) t2
on t1.COLUMN_TABLE=t2.constraint_table
order by 1;
Replace the Source_Schema with your schema name and it will generate the Create statement that you can run on the EXAplus.
For copying the data, I have used the same way that you've mentioned in step 2.
Ok, this question consists of two smaller problems.
1) How to copy DDL of all objects in schema
If you need to copy only small amount of schemas, the fastest way is to use ExaPlus client. Right click on schema name and select "CREATE DDL". It will provide you with SQL to create all objects. You may simply run this SQL in context of new schema.
If you have to automate it, you may take a look at this official script: https://www.exasol.com/support/browse/SOL-231
It creates DDL for all schemas, but it can be adapted to use single schema only.
2) How to copy data
This is easier. Just run the following SQL to generate INSERT ... SELECT statements for every table:
SELECT 'INSERT INTO <new_schema>.' || table_name || ' SELECT * FROM <old_schema>.' || table_name || ';'
FROM EXA_ALL_TABLES
WHERE table_schema='<old_schema>';
Copy-paste result and run it to make the actual copy.
I have an nvarchar field in my database called CatCustom which contains comma-separated 5-character codes. It can contain as little as one code, or as many as 20 codes, separated by commas.
Right now, I use this query to add a new 5-character code to the field in given records (in this case the new code is LRR01):
UPDATE dbo.Sources
SET CatCustom = CONCAT_WS(', ', RTRIM(CatCustom), 'LRR01')
WHERE SourceID IN (1,2,3,4,5,8,9,44,63,45,101,102,222,344)
I need to add to this though: I need the record to be updated only if that 5-character code doesn't already exist somewhere in the CatCustom field, to ensure that code is not in there more than once.
How would I accomplish this?
EDIT: I really don't understand how this can be considered a duplicate of the suggested thread. This is a VERY specific case and has nothing to do with creating stored procedures and or variables. The alleged duplicated thread does not really help me - sorry.
Use STRING_SPLIT function to split the comma separated list and then add Not Exist condition in the WHERE clause like below
UPDATE dbo.Sources
SET CatCustom = CONCAT_WS(', ', RTRIM(CatCustom), 'LRR01')
WHERE SourceID IN (1,2,3,4,5,8,9,44,63,45,101,102,222,344)
AND NOT EXISTS (SELECT 1 FROM STRING_SPLIT(CatCustom, ',') where value = 'LRR01')
UPDATE dbo.Sources
SET
CatCustom = CONCAT_WS(', ', RTRIM(CatCustom), 'LRR01')
WHERE
SourceID IN (1,2,3,4,5,8,9,44,63,45,101,102,222,344)
AND CatCustom NOT LIKE '%LRR01%';
Using the stored procedure sp_msforeachtable it's possible to execute a script for all tables in a database.
However, there are system tables which I'd like to exclude from that. Instinctively, I would check the properties IsSystemTable or IsMSShipped. These don't work like I expect - I have for example a table called __RefactorLog:
But when I query if this is a system or MS Shipped table, SQL Server reports none of my tables are system tables:
exec (N'EXEC Database..sp_msforeachtable "PRINT ''? = '' + CAST(ObjectProperty(Object_ID(''?''), ''IsSystemTable'') AS VARCHAR(MAX))"') AS LOGIN = 'MyETLUser'
-- Results of IsSystemTable:
[dbo].[__RefactorLog] = 0
[schema].[myUserTable] = 0
and
exec (N'EXEC Database..sp_msforeachtable "PRINT ''? = '' + CAST(ObjectProperty(Object_ID(''?''), ''IsMSShipped'') AS VARCHAR(MAX))"') AS LOGIN = 'MyETLUser'
-- Results of IsMSShipped:
[dbo].[__RefactorLog] = 0
[schema].[myUserTable] = 0
When I look into the properties of the table (inside SSMS), the table is marked as a system object. An object property like IsSystemObject doesn't exist though (AFAIK).
How do I check if a table is a system object, apart from the object property? How does SSMS check if a table is a system object?
Management studio 2008 seems to run some quite ugly following code when opening the "System Tables" folder in the object explorer, the key bit seems to be:
CAST(
case
when tbl.is_ms_shipped = 1 then 1
when (
select
major_id
from
sys.extended_properties
where
major_id = tbl.object_id and
minor_id = 0 and
class = 1 and
name = N''microsoft_database_tools_support'')
is not null then 1
else 0
end
AS bit) AS [IsSystemObject]
(Where tbl is an alias for sys.tables)
So it seems that it's a combination - either is_ms_shipped from sys.tables being 1, or having a particular extended property set.
__refactorlog is, in contrast to what SSMS suggests, a user table. It is used during deployment to track schema changes that cannot be deduced from the current database state, for example renaming a table.
If all your other user tables are in a custom (non-dbo) schema, you can use a combination of the isMSshipped/isSystemTable attributes and the schema name to decide if a table is 'in scope' for your script.
In the past I've worked on the assumption that, in the sys.objects table, column is_ms_shipped indicates whether an object is or is not a system object. (This column gets inherited by other system tables, such as sys.tables.)
This flag can be set by procedure sp_ms_markSystemObject. This, however, is an undocumented procedure, is not supported by Microsoft, I don't think we're supposed to know about it, so I didn't tell you about it.
Am I missing something?
However, there are system tables which I'd like to exclude from that
At least on SQL Server 2008, sp_MSforeachtable already excludes system tables, as this excerpt from it shows:
+ N' where OBJECTPROPERTY(o.id, N''IsUserTable'') = 1 ' + N' and o.category & ' + #mscat + N' = 0 '