- users-list - monetdb.org

Re: Quickstart Guide
by Stefan Manegold 20 Mar '13

20 Mar '13

Sterling, did you start the monetdb daemon (monetdbd), first? See also http://www.monetdb.org/Documentation/monetdbd Stefan Sterling Paramore <gnilrets(a)gmail.com> wrote: Thanks, but I'm not terribly interested in building from source. These installation instructions seem to end after it's compiled. I downloaded the binaries for OS X and put them in /usr/local/monetdb, and added /usr/local/monetdb/bin to my PATH. I found http://www.monetdb.org/Documentation/Tutorial (which is … [View More]

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Quickstart Guide
by Sterling Paramore 20 Mar '13

20 Mar '13

The link at http://www.monetdb.org/Downloads/Tutorial is broken and I don't see any way to contact the creators of the web page. How can I get information about how to install MonetDB? Thanks, Sterling

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Performance of PHP client > fetching rows
by Richard Siebeling 18 Mar '13

18 Mar '13

Hi, I querying my database using a script in PHP and returning the result as a JSON (so that it can be retrieved in Javascript). However I notice that querying the database (sending the query to the database) takes about half the time if takes PHP to retrieve the rows (row by row using monetdb_fetch_object). In the documentation I see that the MAPI interface has a fetch_all_rows function, however I can't find this function in the PHP library. In the Python example I see that you are also … [View More]

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Single Quotes VS Double Quotes
by Diethard Steiner 17 Mar '13

17 Mar '13

Hi, I ran into a problem when setting up a user with single quotes: sql>CREATE USER 'tpch' WITH PASSWORD 'tpch' NAME 'TPC-H Admin' SCHEMA 'sys'; syntax error, unexpected STRING in: "create user 'tpch'" Then I followed exactly the quatation style of the voc example and it worked: sql>CREATE USER "tpch" WITH PASSWORD 'tpch' NAME 'TPC-H Admin' SCHEMA "sys"; operation successful (3.663ms) So now with user and schema enclosed in double quotes, password and name in single quotes, it … [View More]

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Extract quarter from date
by Diethard Steiner 17 Mar '13

17 Mar '13

Hi, When I run this: SELECT DISTINCT(EXTRACT(QUARTER FROM o_orderdate)) FROM orders; I get following error: Error: syntax error, unexpected IDENT in: "select distinct(extract(quarter" SQLState: 42000 ErrorCode: 0 Is Quarter not supported or is this a bug? Extract Year, month, day are all working fine. Environment: RHEL (Amazon Linux), Latest version of MonetDB compiled from source code. Thanks, Diethard

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Connecting Tableau to MonetDB
by Pedro Salgueiro 15 Mar '13

15 Mar '13

Hi, I am trying to connect Tableau to a MonetDB instance which is running in a linux machine, using the ODBC MonetDB driver. Tableau manages to connect to MonetDB and is able to list the tables, but then it fails with the following error while performing any Analysis: [MonetDB][ODBC Driver 11.13.9] Invalid identifier 'none:product:nk' > I tried two versions of the ODBC, the latest and Oct2012-SP, but the problem is present in both versions. It's worth pointing that I am able to use the … [View More]

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standard deviation in SQL
by Anshuman Kumar 15 Mar '13

15 Mar '13

Hi, I'm trying to find an aggregate function to find standard deviation. Does monetDB support such a function? For example:- to find the average of the selected values we can use- Select AVG(age) from students where grade = 4; I was taking the help of google and found this link- http://old.nabble.com/users-list-Digest,-Vol-3,-Issue-8-td34660082.html Then I tried the solution given by Percy Wegmann in the above link. After that when I run this query- Select STDEV(age) from students … [View More]

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stddev function disappeared?
by Anthony Damico 14 Mar '13

14 Mar '13

Hello, I'm trying to run some old code with a recent upgrade of MonetDB and the standard deviation function appears to have disappeared. I'm running MonetDB on Windows. This issue was previously discussed and resolved in this thread: http://old.nabble.com/users-list-Digest%2C-Vol-3%2C-Issue-8-tt34660082.html… I could re-open this bug report if appropriate? http://bugs.monetdb.org/show_bug.cgi?id=2454#c18 My server specs are below, and the actual commands below that. Thank you!!! # … [View More]MonetDB 5 server v11.15.1 "Feb2013" # Serving database 'bsapuf', using 8 threads # Compiled for x86_64-pc-winnt/64bit with 64bit OIDs dynamically linked # Found 7.860 GiB available main-memory. # Copyright (c) 1993-July 2008 CWI. # Copyright (c) August 2008-2013 MonetDB B.V., all rights reserved # Visit http://www.monetdb.org/ for further information # Listening for connection requests on mapi:monetdb://127.0.0.1:50003/ # MonetDB/JAQL module loaded # MonetDB/SQL module loaded > c:\Program Files\MonetDB\MonetDB5>mclient -p 50003 "bsapuf" user(win32):monetdb password: Welcome to mclient, the MonetDB/SQL interactive terminal (Feb2013) Database: MonetDB v11.15.1 (Feb2013), 'bsapuf' Type \q to quit, \? for a list of available commands auto commit mode: on sql>select sum( hha_pmt_amt ) from hha08; +-----------+ | L1 | +===========+ | 675676300 | +-----------+ 1 tuple (2.311ms) sql>select sum( hha_pmt_amt ), avg( hha_pmt_amt ) from hha08; +-----------+--------------------------+ | L1 | L2 | +===========+==========================+ | 675676300 | 5412.8151310993435 | +-----------+--------------------------+ 1 tuple (63.559ms) sql>select sum( hha_pmt_amt ), median( hha_pmt_amt ) from hha08; +-----------+------+ | L1 | L2 | +===========+======+ | 675676300 | 3500 | +-----------+------+ 1 tuple (9.601ms) sql>select sum( hha_pmt_amt ), stddev( hha_pmt_amt ) from hha08; SELECT: no such unary operator 'stddev(int)' sql>select sum( hha_pmt_amt ), sd( hha_pmt_amt ) from hha08; SELECT: no such unary operator 'sd(int)' sql>select sum( hha_pmt_amt ), sddev( hha_pmt_amt ) from hha08; SELECT: no such unary operator 'sddev(int)' sql>select sum( hha_pmt_amt ), var( hha_pmt_amt ) from hha08; SELECT: no such unary operator 'var(int)' sql>select sum( hha_pmt_amt ), variance( hha_pmt_amt ) from hha08; SELECT: no such unary operator 'variance(int)' sql>select sum( hha_pmt_amt ), stdevp( hha_pmt_amt ) from hha08; SELECT: no such unary operator 'stdevp(int)' sql> [View Less]

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SQL function for getting the last inserted ID
by Gijs Molenaar 12 Mar '13

12 Mar '13

Hi, A typical question that is probably asked before, but I can't find an answer in the archives or in the doc. Is there a SQL function for getting the last inserted ID for a auto increment or serial field? PostgreSQL has lastval(). I know it is returned in the query result, but I need to have the value inside a SQL function. Also I know that if you manually create a sequence for ID generation you can get the next value with: SELECT NEXT VALUE FOR seq_freq INTO freqid; But we are trying … [View More]

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Insertion problem for large number of columns
by Shajon 12 Mar '13

12 Mar '13

Dear Monet Team, Today I was trying to insert data in MonetDB using " insert into ." command through jdbc from my application but the server is crashing & no data is inserting. That table has 25 columns and I am passing all values. Thanks Shajon

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