Am trying to load the output of show stats into a table post which i am thinking to apply some regular expression function on it.
is there a way to load the output of show stats into a table in TERADATA ?
You could write a python script that executes the query and applies regular expression functions, then insert the results back into Teradata. Teradata has a REST API called Query Service that you could install and connect to the database with.
Related
Can we insert data into kusto table using flow?
I tried to insert data into kusto table using .ingest inline command but it throws a bad request error shown below:
Bad request: Control commands (starting with a dot '.') cannot be served from the query endpoint unless they are .show control commands.\r\nPlease provide the following information when contacting the Kusto.
So can we insert data into kusto table using flow?
it is possible, you just need to choose the Run control command... action instead of the Run query ... option (as .ingest, like any other command that starts with a dot (.) is a control command, and not a query)
that said, using direct ingestion is not necessarily recommended for large scale - you can read more about why here: https://learn.microsoft.com/en-us/azure/kusto/management/data-ingestion/
Inline ingestion (push): A control command (.ingest inline) is sent to the engine, with the data to be ingested being a part of the command text itself. This method is primarily intended for ad-hoc testing purposes, and should not be used for production purposes.
#Yoni L
Thank you it worked but we need to choose Chart Type as Html Table
I'm using RJDBC to connect to a local database. This allows me to make SELECT queries easily using dbGetQuery, and CREATE TABLE using dbWriteTable.
However, I cannot figure out a method to DROP TABLE or DELETE or SELECT INTO directly from my R console. These things work when I do it directly in SQL Developer, but not when I pass the query onto the database from R.
How do I perform database record manipulations which are not SELECT statements using R?
I'd try using a different type instead.
dbGetQuery bases itself on finding and iterating over the DB rather than manipulating it's records.
Similar questions were asked before;
I couldn't find a nice R example, but if it helps, A nice java example could be found here:
EDIT:
I found the type I was talking about! Took me a while, anyhow - sqlQuery allows you to run pretty much any query, that is - a change in the DB records. Example I modified from this source:
res <- sqlQuery(con1,"DELETE TABLE TESTDATA", errors=FALSE)
# res will now hold the result of the query.
# -1 means error, otherwise iteration is sucessful, and it will hold the number of rows affected.
if (res == -1){ #if something messed up
cat ("An error has occurred.\n")
msg <- odbcGetErrMsg(con1) #Use your connection for this.
print (msg)
} else {
cat ("Table was deleted successfully.\n")
}
EDIT 2:
I got it confused with RODBC, however there's no reason to worry, since I found the RJDBC alternative as well! It's called, dbSendUpdate. Example:
# Assuming you have the connection saved as conn; these example shows how to use dbSendUpdate to create tables and insert values.
# You could use it with every non-selective query, that is, which manipulates the record (update,delete,insert,drop etc.)
# create table, with dbSendUpdate:
dbSendUpdate(conn, "CREATE TABLE foo(a INT,b VARCHAR(100))")
# insert value, bind parameters to placeholders in statement:
dbSendUpdate(conn, "INSERT INTO foo VALUES(?,?)", 42, "bar")
# feel free to modify the query itself, these are just example values.
this is similar to another answered question here
basically dbGetQuery() as it name implies is used to send queries and recive their result.
if you want to send a general statement to the db like 'drop table' etc.
you can use:
dbSendUpdate(connection_object, "drop table table_name")
I have to code a script in Teradata that will accept a database-name as an input parameter and then will drop and re-create all the tables that exist in the database (ie passed as the input parameter).
If necessary, it is also good to create a UNIX script with an input parameter that would log-in to the Teradata server and accomplish the same (drop and then recreate), in which case I would want to log the ddls in a file before dropping and recreating them.
Any help is appreciated.
Thanks
Is there a way to output the pl/sql script to datagrid directly? I have a pl/sql script which outputs to console using dbms_output.putline(). I am trying to execute this with TOAD and would like to know if there is any option available to re-route the output to daragrid besides printing it to the console.
Thanks,
Jasu
Probably, no. But you can use one of the following solution :
Use a temporary table and then select on the table.
Use a collection and then select on the collection.
I need to be able to run a query such as
SELECT * FROM atable WHERE MyFunc(afield) = "some text"
I've written MyFunc in a VB module but the query results in "Undefined function 'MyFunc' in expression." when executed from .NET
From what I've read so far, functions in Access VB modules aren't available in .NET due to security concerns. There isn't much information on the subject but this avenue seems like a daed end.
The other possibility is through the CREATE PROCEDURE statement which also has precious little documentation: http://msdn.microsoft.com/en-us/library/bb177892%28v=office.12%29.aspx
The following code does work and creates a query in Access:
CREATE PROCEDURE test AS SELECT * FROM atable
However I need more than just a simple select statement - I need several lines of VB code.
While experimenting with the CREATE PROCEDURE statement, I executed the following code:
CREATE PROCEDURE test AS
Which produced the error "Invalid SQL statement; expected 'DELETE', 'INSERT', 'PROCEDURE', 'SELECT', or 'UPDATE'."
This seems to indicate that there's a SQL 'PROCEDURE' statement, so then I tried
CREATE PROCEDURE TEST AS PROCEDURE
Which resulted in "Syntax error in PROCEDURE clause."
I can't find any information on the SQL 'PROCEDURE' statement - maybe I'm just reading the error message incorrectly and there's no such beast. I've spent some time experimenting with the statement but I can't get any further.
In response to the suggestions to add a field to store the value, I'll expand on my requirements:
I have two scenarios where I need this functionality.
In the first scenario, I needed to enable the user to search on the soundex of a field and since there's no soundex SQL function in Access I added a field to store the soundex value for every field in every table where the user wants to be able to search for a record that "soundes like" an entered value. I update the soundex value whenever the parent field value changes. It's a fair bit of overhead but I considered it necessary in this instance.
For the second scenario, I want to normalize the spacing of a space-concatenation of field values and optionally strip out user-defined characters. I can come very close to acheiving the desired value with a combination of TRIM and REPLACE functions. The value would only differ if three or more spaces appeared between words in the value of one of the fields (an unlikely scenario). It's hard to justify the overhead of an extra field on every field in every table where this functionality is needed. Unless I get specific feedback from users about the issue of extra spaces, I'll stick with the TRIM & REPLACE value.
My application is database agnostic (or just not very religious... I support 7). I wrote a UDF for each of the other 6 databases that does the space normalization and character stripping much more efficiently than the built-in database functions. It really annoys me that I can write the UDF in Access as a VB macro and use that macro within Access but I can't use it from .NET.
I do need to be able to index on the value, so pulling the entire column(s) into .NET and then performing my calculation won't work.
I think you are running into the ceiling of what Access can do (and trying to go beyond). Access really doesn't have the power to do really complex TSQL statements like you are attempting. However, there are a couple ways to accomplish what you are looking for.
First, if the results of MyFunc don't change often, you could create a function in a module that loops through each record in atable and runs your MyFunc against it. You could either store that data in the table itself (in a new column) or you could build an in-memory dataset that you use for whatever purposes you want.
The second way of doing this is to do the manipulation in .NET since it seems you have the ability to do so. Do the SELECT statement and pull out the data you want from Access (without trying to run MyFunc against it). Then run whatever logic you want against the data and either use it from there or put it back into the Access database.
Why don't you want to create an additional field in your atable, which is atable.afieldX = MyFunc(atable.afield)? All what you need - to run UPDATE command once.
You should try to write a SQL Server function MyFunc. This way you will be able to run the same query in SQLserver and in Access.
A few usefull links for you so you can get started:
MSDN article about user defined functions: http://msdn.microsoft.com/en-us/magazine/cc164062.aspx
SQLServer user defined functions: http://www.sqlteam.com/article/intro-to-user-defined-functions-updated
SQLServer string functions: http://msdn.microsoft.com/en-us/library/ms181984.aspx
What version of JET (now called Ace) are you using?
I mean, it should come as no surprise that if you going to use some Access VBA code, then you need the VBA library and a copy of MS Access loaded and running.
However, in Access 2010, we now have table triggers and store procedures. These store procedures do NOT require VBA and in fact run at the engine level. I have a table trigger and soundex routine here that shows how this works:
http://www.kallal.ca/searchw/WebSoundex.htm
The above means if Access, or VB.net, or even FoxPro via odbc modifies a row, the table trigger code will fire and run and save the soundex value in a column for you. And this feature also works if you use the new web publishing feature in access 2010. So, while the above article is written from the point of view of using Access Web services (available in office 365 and SharePoint), the above soundex table trigger will also work in a stand a alone Access and JET (ACE) only application.