I am still pretty new to everything and now I am trying to validate my input SQL.
My powershell script allows me to se some variables which I want to enter in a selected database. What I need is a check if the entry already exists or not. And if it exists my script shall stop.
Script part :
if exists(select * from [DB1].dbo.[table1]
where Name = '$variable1')
"stop script but how?"
else
insert into ......
So I need something which replaces "stop script but how?" somehow :)
Why do you need to "stop" the script? Reverse your logic - if the thing doesn't exist, only then do the rest of the stuff.
IF NOT EXISTS (SELECT ...)
BEGIN
-- do all the things
END
Related
I'm running into a challenge when using Connected Sheets to interact with BigQuery. The following query fails to execute.
IF TRUE THEN
SELECT "Some message" AS `msg`;
END IF;
The Connected Sheets query editor invalidates this statement with the following error.
The query returns a type that is currently not supported.
Without the IF statement the query obviously runs just fine.
The same error is displayed when trying to run a BigQuery stored procedure for instance using something like this.
CALL my_dataset.my_sp()
What could be going on here?
From what I'm reading in the documentation, you need to return what you are trying to select outside of the if statement. So you would need something like this
DECLARE x STRING DEFAULT "Test message";
IF TRUE THEN
SELECT "Some message" AS `msg`;
SET x = msg;
END IF;
SELECT x;
You will probably need to edit this to work though, I have never used bigquery before
I need to have a script which can copy the value from InternetAddress Field in the person document one by one in names.nsf and append it in the User Name field. Can someone help with a working script?
This can literally be done with a one-line formula, using a simple assignment statement and the list append operator. It is really the most basic thing you can do in all of Lotus Notes programming. It doesn't even need to use any of the #functions.
The syntax for an assignment is:
FIELD fieldThatYouWantToSet := value;
The syntax for the list append operator is:
value1 : value2;
The only other thing you need to know is that value1 and value2 can simply be the names of existing items (a.k.a. fields), and the list of values in the second item will be appended to the list of values in the first item.
Then, all you will need to do is to put this one-liner into a formula agent that runs against all documents in the current view, and run the agent from the Actions menu while you are in the view.
Option-1:
There are a few ways to accomplish this, the simplest being , as the user specified before, a simple field function would do.
FIELD UserName := UserNAme:InternetAddress;
You could set and run the above field function in an agent in $UsersView
In option-2, you could also use the "UnProcessedDoc" feature and set and run as an agent.
But, here, I have written one another way to set and run as an agent in $UsersView.
Hope this helps, please approve this answer if this had helped anyone.
Option:2
At present , no Domino in my System, in order to test this snippet. I wish there exists any method online to test this snippet before I post.
But, logically, consider this snippet as a pseudo-code to accomplish ur objective.
Above all, it has been more than a decade or two ever since I have programmed in Domino. Because, I moved on to RDMS, DW, BI and now to Cloud... well Cloud-9. :)
Here is a portion of lotus script code to copy the value from InternetAddress Field in the person document one by one in names.nsf and append it in the UserName field.
Dim db As New NotesDatabase( "Names Db", "names.nsf" )
Dim view As NotesView
Dim doc As NotesDocument
Dim InternetAddress_value As Variant
Set view = db.GetView( "$Users" )
// loop thru all docs in $Users view.
// Get InternetAddress_value and rep it in UserName
Set doc = view.GetFirstDocument
If doc.HasItem("InternetAddress") Then
While Not(doc Is Nothing)
// in this line we concatenate username with IAaddress_value
new_value= doc.GetItemValue( "username" ) + doc.GetItemValue( "InternetAddress" )
Call doc.ReplaceItemValue( "UserName", new_value)
Call doc.Save( False, True )
Set doc = view.GetNextDocument(doc)
Wend
End If
This solution is posted by Mangai#Notes#Domino#Now_HCL . Encourage to post more solutions by approving the answer.
I am using a simple sql block of statements to execute and return a set of results in big query, This is working fine in big query and getting the results,I need to export this data to data studio, so in data studio i use bigquery as connector and select the project and custom query and in that I paste the contents below:
Declare metricType String;
SET metricType="compute.googleapis.com/instance/cpu/utilization";
BEGIN
IF (metricType="compute.googleapis.com/instance/cpu/usage_time")
THEN
SELECT m.value as InstanceName,metric.type as metricType,point.value.double_value as usagetime,point.interval.start_time as StartTime,point.interval.end_time as EndTime,h.value as instance_id FROM `myproject.metric_export.sd_metrics_export_fin`, unnest(resource.labels) as h,unnest(metric.labels) as m where metric.type='compute.googleapis.com/instance/cpu/usage_time' and h.key="project_id";
ELSE IF (metricType="compute.googleapis.com/instance/cpu/utilization")
THEN
SELECT m.value as InstanceName,metric.type as metricType,point.value.double_value as utilizationrate,point.interval.start_time as
StartTime,point.interval.end_time as EndTime,h.value as instance_id FROM `myproject-.metric_export.sd_metrics_export_fin`,unnest(resource.labels) as h,unnest(metric.labels) as m where metric.type='compute.googleapis.com/instance/cpu/utilization' and h.key="project_id";
END IF;
END IF;
END;
but after click "ADD" button i get the below error:
I am not sure what is this error about? I have not used any stored procedure and I am just pasting it as custom query.
Also If I try to save the results of the BigQuery into a view from the Bigquery console results pane, it gives me the error,
Syntax error: Unexpected keyword DECLARE at [1:1]
I am extremely new to datastudio and also to bigquery. Kindly Help thanks
First, I would like to make some considerations about your query. You are using Scripting in order to declare and create a loop within your query. However, since you declare and set the metricsType in the beginning of the query, it will never enter in the first IF. This happens because the value is set and it is not looping through anything.
I would suggest you to use CASE WHEN instead, as below:
SELECT m.value as InstanceName,metric.type as metricType,
CASE WHEN metric.type = #parameter THEN point.value.double_value ELSE 0 END AS usagetime,
CASE WHEN metric.type = #parameter THEN point.value.double_value ELSE 0 END AS utilizationrate,
point.interval.start_time as StartTime,point.interval.end_time as EndTime,h.value as instance_id
FROM `myproject.metric_export.sd_metrics_export_fin`, unnest(resource.labels) as h,unnest(metric.labels) as m
WHERE metric.type=#parameter and h.key="project_id";
Notice that I am using the concept of Parameterized queries. Also, for this reason this query won't work in the console. In addition, pay attention that whem you set the #parameter to "compute.googleapis.com/instance/cpu/utilization", it will have a non-null column with the usagetime and a null column named utilizationrate.
Secondly, in order to add a new data source in DataStudio, you can follow this tutorial from the documentation. After, selecting New Report, click on the BigQuery Connector > Custom Query> Write your Project id, you need to click in ADD PARAMETER (below the query editor). In the above query, I would add:
Name: parameter
Display name: parameter
Data type: text
Default value: leave it in blank
Check the box Allow "parameter" to be modified in reports. This means you will be able to use this parameter as a filter and modify its value within the reports.
Following all the steps above, the data source will be added smoothly.
Lastly, I must point that if your query ran in the Console you are able to save it as a view by clicking on Save view, such as described here.
I'm trying to use db2 pl/sql script giving a template code.
--#set delimiter !
begin atomic
for S as
<query statement that finds quests, "swaps", with a donor/donation & recipient pair>
do
<update statement that fixes Loot with the swap 'S'>;
end for;
-- handle each swap
end!
-- we're done once through
in my query statement i used something like this:
with
t1 (args) as (
...
)
...
select ...
where ... ;
in the update statement
update Loot set ... where ...
but the problem is, when i try to run the full sql code script on the database, I keep getting the message :
"An unexpected token "begin" was found following "<identifier>".
Expected tokens may include: "USER". SQLSTATE=42601 DB21007E End of file
reached while reading the command.
I want to know, how to use the proper syntax or format to include the "with queries" and also update statement to stop giving me the error. I have the "with query" working in a separate file, but when i combine both statements into the template, it would give me this error. Also as well, if I were to include triggers, which part of the code should i put it in. Thank you.
Here is an example that might help.
CREATE TABLE EG(I INT, J INT)!
INSERT INTO EG VALUES (1,1),(2,3)!
begin
for c as with w(i,u) as(values (2,5)) select i,u from w
do
update eg set j = j + c.u where i = c.i;
end for;
end
!
If this does not help your problem, please post a version of your code that we can run and which returns the error message that you are struggling with.
I wrote a Perl script to check the data in an Oracle database. Because the query process is very complex I chose to create a VIEW in the middle. Using this view the code could be largely simplified.
The Perl code run well when I used it to query the database starting from a file, like Perl mycode.pl file_a. The Perl code reads lines from file_a and creates/updates the view until the end of the input. The results I achieved are completely right.
The problem came when I simultaneously run
perl mycode.pl file_a
and
perl mycode.pl file_b
to access the same database. According to my observation, the VIEW used by the first process will be modified by the second process. These two processes were intertwined on the same view.
Is there any suggestion to make these two processes not conflict with one another?
The Perl code for querying database is normally like this, but the details in each real query is more complex.
my ($gcsta,$gcsto,$cms) = #t; #(details of #t is read from a line in file a or b)
my $VIEWSS = 'CREATE OR REPLACE VIEW VIEWSS AS SELECT ID,GSTA,GSTO,GWTA FROM TABLEA WHERE GSTA='.$gcsta.' AND GSTO='.$gcsto.' AND CMS='.$cms;
my $querying = q{ SELECT COUNT(*) FROM VIEWSS WHERE VIEWSS.ID=1};
my $inner_sth = $dbh->prepare($VIEWSS);
my $inner_rv = $inner_sth->execute();
$inner_sth = $dbh->prepare($querying);
$inner_rv = $inner_sth->execute();
You must
Create the view only once, and use it everywhere
Use placeholders in your SQL statements, and pass the actual parameters with the call to execute
Is this the full extent of your SQL? Probably not, but if so it really is fairly simple.
Take a look at this refactoring for some ideas. Note that is uses a here document to express the SQL. The END_SQL marker for the end of the text must have no whitespace before or after it.
If your requirement is more complex than this then please describe it to us so that we can better help you
my $stmt = $dbh->prepare(<<'END_SQL');
SELECT count(*)
FROM tablea
WHERE gsta = ? AND gsto = ? AND cms= ? AND id = 1
END_SQL
my $rv = $stmt->execute($gcsta, $gcsto, $cms);
If you must use a view then you should use placeholders in the CREATE VIEW as before, and make every set of changes into a transaction so that other processes can't interfere. This involves disabling AutoCommit when you create the database handle $dbh and adding a call to $dbh->commit when all the steps are complete
use strict;
use warnings;
use DBI;
my $dbh = DBI->connect('dbi:Oracle:mydbase', 'user', 'pass',
{ AutoCommit => 0, RaiseError => 1 } );
my $make_view = $dbh->prepare(<<'END_SQL');
CREATE OR REPLACE VIEW viewss AS
SELECT id, gsta, gsto, gwta
FROM tablea
WHERE gsta = ? AND gsto = ? AND cms= ? AND id = 1
END_SQL
my $get_count = $dbh->prepare(<<'END_SQL');
SELECT count(*)
FROM viewss
WHERE id = 1
END_SQL
while (<>) {
my ($gcsta, $gcsto, $cms) = split;
my $rv = $make_view->execute($gcsta, $gcsto, $cms);
$rv = $get_count->execute;
my ($count) = $get_count->fetchrow_array;
$dbh->commit;
}
Is the view going to be the same or different?
If the views are all the same then create it only once, or check if it exists with the all_views table : http://docs.oracle.com/cd/B12037_01/server.101/b10755/statviews_1202.htm#i1593583
You can easily create a view including your pid with the $$ variable to be the pid, but it wont be unique across computers, oracle has also some unique ids, see http://docs.oracle.com/cd/B14117_01/server.101/b10759/functions150.htm, for example, the SESSIONID.
But do you really need to do this? why dont you prepare a statement and then execute it? http://search.cpan.org/dist/DBI/DBI.pm#prepare
thanks,
mike