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0
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14 views

PostgreSQL - Are CREATE FUNCTION and DROP FUNCTION locking when used inside different transactions?

I'm having a locking issue on PostgreSQL 9.4.5. I run two or more transactions simultaneously (generally there are 2 running at the same time, but 2+ may happen sometimes) reading from the same tables ...
6
votes
1answer
104 views

How to better use CLR Function from performance point of view (repeat inside each DB or have general function)?

I asked a question about validation of XML using XSD schema inside SQL Server 2012 (see link). I understand (as I suspected) that I need to use CLR Function. The function will get XSD schema text and ...
0
votes
0answers
16 views

Is there an alternative to delete a procedure inside a procedure?

For my Bachelor Thesis I try to automate some recurring tasks in MySQL. One task consists of the deletion of a specific stored procedure. Normally I would create a stored procedure which takes one ...
4
votes
1answer
91 views

Validate XML using XSD inside TSQL function in SQL Server 2012?

I need to validate XML using XSD inside TSQL. To make this task semi automated I need to do this inside TSQL function. To make validation I have to set value to XML and if it is not valid I will ...
0
votes
0answers
10 views

Fire trigger when Routine was created in MySQL

I try to track changes of Stored Procedures and UDFs in MySQL. That means, if a SP or UDF is created, I want to copy the information into another table. I tried to clone the ...
1
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0answers
19 views

Populate ID Field by Converting Group Name Values

This is a bit tricky to explain, but here goes. We have a System Rights database that loads system users and system rights or access levels into two different tables. The database is already built ...
4
votes
4answers
110 views

Implicit conversion warning despite persisted computed column vs. performance hit from UDF in persisted computed column definition

I have a need for a computed column to resolve an implicit conversion problem. I have a column that is declared as a VARCHAR that should only ever store integers, but is occasionally populated in ...
0
votes
0answers
28 views

MySQL performance affected by calling functions from inside procedures?

this is the very first question I post, so please bear with me ... When working on a project, I tried to get the LAST_INSERT_ID for a table, by invoking it from inside a procedure right after an ...
6
votes
2answers
219 views

User Defined Function (UDF) in master database

I have a function which is used in more than a dozen databases. I want this function to be accessible in all the databases by writing it only once, so I want to write the function in master database ...
0
votes
1answer
22 views

Postgresql 9.4: How to find out the stack level of nested function

Here are the two cases: Function fA fetches some rows and returns a table Function fB calls function fA and returns a table Within fA, how could I know whether it's been called from the program or ...
0
votes
1answer
33 views

plpy.execute('…') statements not in logs

How can I get the SQL statements executed by plyp into the postgres log files? CREATE FUNCTION history_monitor() RETURNS trigger LANGUAGE plpythonu AS $_$ ... plpy.execute('...') $_$; ...
3
votes
1answer
88 views

Need for recursive lookup, stuck in query design

In PostgreSQL 9.4, here is my table: with r(pk, userid,partneruserid) as (values (1,1,2), (2,1,3), (3,1,6), (4,2,5), (5,2,6), (6,3,1), (7,4,1), (8,5,3), (9,6,2), (10,6,3) ) select * from r; In a ...
0
votes
1answer
49 views

When to use stored procedure / UDF? [closed]

I'm confused about usage of SP / UDF. Typically, it is also possible to write code in programs outside of database. So is there any general advice to decide when to use them?
0
votes
0answers
32 views

Are MySQL UDF ACID compliant?

I had a Client Requirement wherein i had to write a MySQL UDF to generate AlphaNumeric Values. The input parameters for the Function where 1.Prefix Character 2.The Length of the AlphaNumeric Value 3. ...
0
votes
0answers
29 views

Unable to update table in MySQL Function

I have a requirement, where in i have create a function which will generate Alphanumeric Values based on the two Inputs..1. A string 2. A Digit. Like If the string is Mem..then Mem001,Mem002 and If ...
13
votes
2answers
252 views

How to implement a Set based algorithm/UDF

I have an algorithm that I need to run against every row in a table with 800K rows and 38 columns. The algorithm is implemented in VBA and does a bunch of math using values from some columns to ...
0
votes
1answer
24 views

Cannot find either column “dba” or the user-defined function or aggregate “schema.functionName”, or the name is ambiguous

I created a function and granted select on [dba].[ufn_track_dailies] to public. The function shows up under table valued functions, but when I try to use it I get an error: select ...
4
votes
1answer
138 views

Performance problems with TOP and user defined functions in views

I have problem with performance of queries on simple query on view. To keep things simple, assume my view is defined as follows: CREATE VIEW [mon].[ViewDevicesWithGroups] AS SELECT Id, Name, ...
2
votes
1answer
401 views

Password generator function

What's the best way of creating a password generator user defined function function in SQL Server if it is not possible to use non deterministic funtions within functions? I would like to create a ...
1
vote
1answer
72 views

Strange behaviour in TSQL function (parameter with int variable or NULL behaves differently)?

I experienced very strange problem today with TSQL function. The function has several parameters (int and bit). One of the (int) is set with value NULL. When calling a function with NULL inside the ...
0
votes
0answers
11 views

Are User Defined functions always allowed on cloud services?

The question is, what is the policy on user defined functions on cloud services like Amazon RDS or Azure? Is it possible to load any User Defined Function? If so, isn't it possible to load some ...
2
votes
0answers
38 views

Is there a way to determine if a postgres function depends on a user-defined type?

I am writing a Ruby script to handle functions and user-defined types in Postgres. I want to make sure, that before a function is created in the database, if it uses a user-defined type, than this ...
0
votes
1answer
47 views

Usage of ExecSQL in UDF?

Problem: is it possible to use sp_executesql or EXEC inside of a user defined function? Thanks!
2
votes
2answers
130 views

How can I query a remote server using a local function?

I am querying a remote server for which I only have read permissions. I set up a local server with a UDF (since I cannot create one on the remote) that I would like to utilize for the query. When I ...
0
votes
0answers
84 views

MySQL Queries in UDF

I would like to create a MySQL UDF (i.e. User Defined Function) that embeds a query; for instance, suppose the UDF is named foobar: mysql> SELECT foobar(); When foobar function receives the ...
0
votes
2answers
96 views

When doing an update on a set of records, how do i get previous updates to show on current row to update in UDF [closed]

SO i have a rowset of 10 UIDs. They are all dupes, lets say DUPEUID. I have a UDF that will take the UID, check it against the table to see if there is a dupe, and update the UID to DUPEUID01. The ...
1
vote
0answers
20 views

CLR UDT SCH-M blocking

I’m hoping someone can provide some guidance on a problem I’m having with schema locking on C# CLR UDT’s. I’ve been on the Internet for an extended period of time researching my problem without ...
-2
votes
1answer
44 views

Postgresql - Stuck building a plpgsql function [closed]

I am a beginner in plpgsql and i am stuck coding a function. I need a function that does the following: Giving a table, a id_field in that table and another field in that table it does: ORIGINAL ...
3
votes
1answer
5k views

How to grant permissions on a table-valued function

Am I doing it right...? I have a function that returns money... CREATE FUNCTION functionName( @a_principal money, @a_from_date datetime, @a_to_date datetime, @a_rate float ) RETURNS money AS ...
0
votes
2answers
504 views

Using output value of column from function for another column in SQL*Loader

I have asked the same question on StackOveflow. Do not know, if this site is linked to that or not and thus whether that question will be seen by professionals here, so I am adding it here. Please ...
2
votes
1answer
852 views

How to return a record from function, executed by INSERT/UPDATE rule (trigger)?

I'm having some issue when I'm trying to join two tables in a single view (for migrating code we want to split one big record into two records). I'm using Postgres 9.4! Here is an SQL fiddle. The ...
1
vote
1answer
1k views

How to join a table with a table valued function?

I have a user defined function: create function ut_FooFunc(@fooID bigint, @anotherParam tinyint) returns @tbl Table (Field1 int, Field2 varchar(100)) as begin -- blah blah end Now I want to join ...
1
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0answers
262 views

How Do I Get DB2 NoSQL User-Defined Functions to Work

I am using NoSQL in DB2 10.5 FP4. I am creating and connecting to the database with the 'db2admin' administrator user ID on my Windows machine. I also used the 'db2 attach to DB2_01 as db2admin' ...
5
votes
2answers
319 views

How do I create a user-defined aggregate function in MySQL (redux)?

OK, I'm probably going to get banned for asking the same question a second time, but I'm an incredible newbie here and I was told I don't have enough of a reputation to comment on the original ...
1
vote
1answer
677 views

How Do I Grant Permissions to Replace a Function?

I am getting the following error message (when trying to enable NOSQL in DB2 10.5, although I don't think that's really the issue): Error code: -551 DB2 SQL Error: SQLCODE=-551, SQLSTATE=42501, ...
0
votes
1answer
318 views

MySQL UDF - wrong ELF class: ELFCLASS32

I'm having a problem creating a MySQL udf on my server (I was able to do it locally on OS X). I am compiling it like this on the server: gcc $(mysql_config --cflags) -I /usr/include/mysql -I. -shared ...
1
vote
1answer
36 views

Handling exceptions from inside a function

I need to add a trigger after insert or update on a table so that, where some row is updated and a certain condition is met, then some other table needs to be updated. However, that last update ...
2
votes
3answers
3k views

Can I use PHP function strtotime() in SQL queries?

I have this table, and I need to use a PHP function in the query. id time lastTime 1 08:02 2 08:04 3 08:30 I am using this query with the strtotime(), and it's not working: ...
-1
votes
1answer
208 views

View vs TableValued Function vs SubQuery

I have a scenario where i need to join with 3 tables to get the value for one field for second field join with 4 tables for third field join with 3 tables all above joins are inner and if data ...
3
votes
1answer
431 views

Is support for Parallel Scalar UDF a reasonable feature request?

It is fairly well documented that scalar UDF's force an overall serial plan. Running functions in parallel Given a large number of rows coming into a point in the pipeline where a UDF must be ...
0
votes
0answers
78 views

Slow search times with functions despite index?

I'm aware that this question might be under the guidelines of being closed, but I'm out of ideas at the moment on how to optemize this table any further. Given a have a few billion records with ...
0
votes
1answer
116 views

Can queries containing deterministic user defined functions be cached in mysql query cache?

According to the mysql 5.6 docs: A query also is not cached under these conditions: ... It refers to user-defined functions (UDFs) or stored functions. However, I have seen claims that if ...
1
vote
2answers
289 views

Latitude and Longtitude Distance Calculation [closed]

I'm using MySQL and I am trying to calculate the distance in meters between two different longitude, latitude coordinates. I wrote a stored function in MySQL but it calculates just 1 for each row in ...
2
votes
1answer
407 views

Getting Visual Studio to deploy a UDF to Return NVARCHAR(MAX)

I have a SQLCLR stored procedure with the following signature in Visual Studio 2013: [SqlFunction(DataAccess = DataAccessKind.Read, SystemDataAccess = SystemDataAccessKind.Read)] public static ...
2
votes
1answer
3k views

Automatic conversion of anonymous records returned from an UDF to well known table-type

Proprietary code (that we cannot change) has a bunch of user defined functions of the type: create or replace function f() returns record as $$ ... $$ which we call in the following way (for ...
2
votes
2answers
6k views

Insert values from a record variable into a table

I am developing a user-defined function that takes two arguments: create or replace function gesio( events_table_in regclass, events_table_out regclass) returns void as $$ ... $$ ...
3
votes
2answers
4k views

Why cannot I call a table function in iSeries DB2 that I just created?

Using iSeries Navigator 'Run an sql script' window I created a new table function. When I go to the Functions branch under the schema where it was created, I see the function among the other few. But ...
5
votes
1answer
2k views

MySQL possibility to create global routines (stored procedures and/or functions)

Is it possible to somehow define globally available routines? It seems like every routine must be created in a scope of the database. When I tried to create a routine from console (without prior ...
1
vote
2answers
107 views

Optimizing UDF - Is Using DUAL Expensive

I am new to Oracle technology (primarily versed in SQL Server) and I am having trouble with the performance of a UDF. The purpose of the UDF is to take some inputs for an "event", and look up an ...
13
votes
1answer
4k views

SQL injection in Postgres functions vs prepared queries

In Postgres, are prepared queries and user defined functions equivalent as a mechanism for guarding against SQL injection? Are there particular advantages in one approach over the other?