A function performs some specified work, usually taking parameters as input. In terms of databases these may be specific to SQL or to the database vendor.

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1answer
15 views

RETURN TABLE is converted to RETURN SETOF int in Postgres function

In pgAdminIII I create a function that returns multiple rows in a single column named identifier using RETURN TABLE: CREATE OR REPLACE FUNCTION test( IN parm1 date, IN parm2 interval) ...
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0answers
25 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 ...
1
vote
1answer
34 views

How to update table1 field by using other table and function

I have two tables and one function: Table1 contains shop_code,batch_id shop_code| batch_id | regstriy_id 123 | 100 | 12 124 | 100 |13 125 | 100 |12 Table2 contains shop_code,shop_name ...
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0answers
21 views

mysql Function not picking up parameter

I have written the following function: DECLARE thetotal INTEGER; select count(stock_current.EntryNo) INTO thetotal FROM stock_current WHERE (stock_current.PartNo = thepart) AND ...
0
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1answer
21 views

Function for generate a huge and possible random relationship between tables

I have this two tables and N:M relationship between them: Let's said I am managed to create a lot of media and emails records but I need to create the relationship between them. I can do this ...
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0answers
13 views

SQLAnywhere: How to apply function to list members?

I'm a newbie to SQL Anywhere... what a difference from the big O! I'm working in SQL Anywhere 12. I have a query that returns a column values that are a list of big int numbers, EXAMPLE: ...
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0answers
31 views

Pgsql Function to create multiple child tables inherited from parent tables

I need help with pgsql function to create multiple child tables concatenated with date. Inherited from parent tables. I am using the following queries -- Setting date range SELECT CAST( ...
2
votes
1answer
352 views

PostgreSQL function definition “syntax error at or near +” [closed]

Suppose a simple query: (SELECT MAX(timestamp) FROM events e WHERE e.id < some_id) + ((SELECT MIN(timestamp) FROM events e WHERE e.id > some_id) - (SELECT MAX(timestamp) FROM events e ...
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0answers
39 views

MySQL: Hierarchical query to get the direct and indirect child

I am just trying to modify the code as in MySQL: Tree-Hierarchical query to get values inside single quotes and seems like the system hangs. Not sure where I am going wrong.. Here is the code. BEGIN ...
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0answers
40 views

For Postgres, how would I define a custom function to generate primary keys?

In postgres, primary keys are typically generated using a SEQUENCE. I am hoping to generate a unique random 12 character string for use as a primary key. How would I do this in Postgres?
3
votes
1answer
158 views

'ERROR: text search dictionary “unaccent” does not exist' during CREATE INDEX?

I'm running PostgreSQL 9.3 on Mac OS X Yosemite. I try to create an unaccent lowercase trigram index. To achieve it I did this: mydb=# CREATE EXTENSION pg_trgm SCHEMA public VERSION "1.1"; ...
1
vote
1answer
99 views

SQL query to sum a column prior to date and show all entries after that date

I have a database function that sum a column prior to a date and after that date show all entries one by one. that function return the data ordered by a common field and apply the sum by date every ...
0
votes
1answer
92 views

SQL Server Function For Calculating Average Excluding Outliers

I'm looking for a function that will let me take an average and exclude outliers. Basically something where: 1, 2, 1, 2, 7 Would average out to 1.5. I'm going to implement this in a financial ...
0
votes
1answer
41 views

No records in Mysql.func table even though there are stored functions in server

When i am creating a user defined function in one of my mysql server, it's not creating any row in mysql.func table . Even though i have multiple functions in my mysql server , this table is empty . ...
0
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1answer
47 views

Joining two inline functions, slows considerably when filtering on second function

ok, So I have two inline functions that run quickly enough alone. When I left join them like this select * from Function1(-1) F1 left join Function2(-1) F2 on F1.key = F2.key When I run this I ...
0
votes
1answer
63 views

PostgreSQL - is it possible to use a plpgsql function in a bash script?

Target : What i'm trying to achieve is to restore a partial backup of a database (only certain rows that satisfied certain conditions have been backed up). Problem : Since between the partial-backup ...
0
votes
1answer
120 views

Error with FUNCTION ( SQL Server 2008 ) - ''Cannot find either column…'

Friends, I have this Function: create function [dbo].[fn_xxx] ( @Nome varchar(100), @Descricao varchar(500) ) RETURNS @tbDados table ( Qtd int ) as Begin ...
0
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1answer
32 views

Function to handles firstname and lastname to a specific format

I'm trying to figuring out a way to show a name properly. Let's say I have 2 variable : @Firstname = 'Marc-Oliver' @Lastname = 'Saint-Onge' I would like to have name shown as; M.-O. St.Onge Or ...
0
votes
2answers
79 views

AVG function returns wrong average

I have a simple table with a column of type REAL. There are 2 rows in the table and the values are 0.23 and 0.24. If I run the following: SELECT AVG(MyColumn) FROM dbo.MyTable I would expect to ...
0
votes
1answer
73 views

How to use MySQL stored function argument to refer to column name?

How can I use a function argument s to stand in for a column name in a query? I'm using mysql 5.5. I tried SELECT count_distinct(last_name) but it returns ERROR 1054 (42S22): Unknown column ...
0
votes
1answer
66 views

Convert an interaction matrix into a ternary relation

I have what I'm calling a sparse "interaction matrix" of data in MS Excel that I wish to convert into a "ternary relation" (table) in Access. The spreadsheet data are in this pattern: Name Act-1 ...
-1
votes
1answer
34 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 ...
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0answers
36 views

Wrapping code in function is causing a huge delay

I have the following function: CREATE FUNCTION [dbo].[FunctionScore] ( @Param1 ... ,@ParamN ) RETURNS TABLE RETURN ( SELECT T1.[Col001] ,SUM(ISNULL(F1.[Pts], T2.[Pts])) ...
2
votes
1answer
55 views

How to Create Aggregate function in SQL Server 2008

My requirement is to create concatenate function so I am trying to create Aggregate function as shown CREATE AGGREGATE [dbo].[Concatenate] (@value [NVARCHAR](MAX)) RETURNS[NVARCHAR](MAX) EXTERNAL ...
0
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1answer
28 views

Update statement with a function

I'm just curious. I was trying to optimize an update statement with a function Ex update circle set area = fnGetArea(radius) where ...<bunch of conditions> This update went 5-10mins and when ...
0
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0answers
29 views

Using Code to Access Database Dump via pgAdmin

I looked over this question on how to import a data dump using pgadmin and found the following code: CREATE OR REPLACE FUNCTION db_to_csv(path TEXT) RETURNS void AS $$ tables RECORD; gmdeclare ...
0
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1answer
38 views

Allow public use of functions without giving them database control

I came up with a set of functions that I would like to be accessed from a variety of places. SQL seemed like the best place for this due to accessibility, but I receive this error when trying to use ...
0
votes
1answer
54 views

Syntax Error In Postgresql Function [closed]

Why am I getting: ERROR: syntax error at or near "'SELECT '" In: CREATE OR REPLACE FUNCTION GetListings (lon double precision, lat double precision, schemas name[]) RETURNS TABLE( schema ...
2
votes
2answers
556 views

Is it possible to define a function within a stored procedure?

I have a stored procedure: create proc sp_MyProc(@calcType tinyint) as begin -- some stuff collating data into #MyTempTable if (@calcType = 1) -- sum select A, B, C, CalcField = ...
1
vote
1answer
110 views

Next value for Sequence Function

Why does this give me the same value, four 1? USE [TSQL2012] GO IF OBJECT_ID('dbo.sqlsequence', 'SO') IS NOT NULL DROP SEQUENCE dbo.sqlsequence; GO CREATE SEQUENCE [dbo].[SQLSequence] AS INT ...
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2answers
585 views

Add function parameter to SQL query WHERE clause

I have a web application in java and it uses a query. I don't want to write the query into Java, so I made a function: CREATE OR REPLACE FUNCTION testFunc(inputs text) RETURNS TABLE(...) AS $$ ...
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2answers
204 views

Function extract() from date returns double precision value

Why does the Postgres function extract() return double precision from date value? Only reason I could imagine is, there are some locales using calendars (those not Gregorian calendars and supported ...
1
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1answer
106 views

Implement a Parent-Level Count in Binary Search Tree

Based on this question, have any way to implement a parent level count? Find highest level of a hierarchical field: with vs without CTEs Example table: +----+-----------+ | id | parent_id | ...
0
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0answers
36 views

Performance decline function vs command window

I have a function that I first wrote as a serious of commands. In the SQL command window when executed, those steps take about 8 seconds to return the data set. When those same commands are turned ...
2
votes
1answer
565 views

Why “SET LOCAL statement_timeout” does not work as expected with PostgreSQL functions?

My understanding is that PostgreSQL functions are executed similar to a transaction. However, when I tried to "SET LOCAL statement_timeout" within a function, it did not work. Here's how it works ...
2
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0answers
36 views

PLSQL using cursors or functions to query repeated data

Is it better to declare a commonly used lookup query as a package function or as a function (either returning rows or values or returning a sysref cursor)? Whats the difference? What are the best ...
2
votes
2answers
131 views

Call UPSERT function multiple times to different inputs

I have a function: merge_vehicles(vid, cid, vname, reg_no, name, name_1st) Can i call it multiple times on inputs like (2335, 55, '246BDH', '246BDH', '811', 1), (2336, 55, '038THX', '038THX', ...
1
vote
2answers
284 views

Assign to NEW by key in a Postgres trigger

In the trigger body, how can I assign a value to NEW by it's field name? That's what I want to do: some_key = "some_column"; NEW[some_key] = 5;
0
votes
1answer
175 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 ...
0
votes
2answers
242 views

Returning true or false in a custom function

I have this mysql table schema CREATE TABLE `nxt_records` ( `id` INT(11) NOT NULL AUTO_INCREMENT, `tel_number` VARCHAR(50) NULL DEFAULT NULL, `nxt_status` VARCHAR(50) NULL DEFAULT NULL, ...
0
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0answers
84 views

postgres: access to schema objects within a function

Here's my problem: I have Schema A, owned by User 1, that owns all objects. I've created schema B, owned by User 2. I have granted User 2 all privileges to the objects owned by User 1. When logged ...
0
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1answer
216 views

Explain doesn't show indexed column as key

Consider the following table structure CREATE TABLE `games` ( `game_id` bigint(20) NOT NULL AUTO_INCREMENT, `players_no` tinyint(4) DEFAULT NULL, `startedon` datetime NOT NULL DEFAULT '0000-00-00 ...
0
votes
1answer
39 views

column value is not increment after 10

I tried below 2 codes.... showing same error 1.SELECT columnname FROM tablename ORDER BY columnname DESC LIMIT 1 SELECT MAX(columnname ) AS max FROM tablename I am trying to increment value of ...
0
votes
0answers
144 views

Why would call to scalar function inside a Table Value Function be slower than outside the TVF?

I am writing a Table Value Function, calling the function takes 10x as long as directly running the code. I traced this to a call to a multi-line scalar function inside the TVF. The call to the ...
2
votes
1answer
104 views

How to apply a regex on a column fetched from DB

I am using IBM DB2. So, I am retrieving a column named SSN from a table. I have to apply the following regex on that column: ([1-57-8][0-9]{2} |0([1-9][0-9] |[0-9][1-9]) |6([0-57-9][0-9] ...
4
votes
0answers
103 views

Why is it @@SERVERNAME but not @@DBNAME? [closed]

I'm just curious: To get the server name, I use SELECT @@SERVERNAME but to get the current database name, I use SELECT DB_NAME() Technically, both seem to be scalar functions: @@SERVERNAME is ...
1
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1answer
121 views

What does exec(text) do?

I just found the following function in two RDS PostgreSQL 9.3 DBs: -- -- Name: exec(text); Type: FUNCTION; Schema: public; Owner: adam -- CREATE FUNCTION exec(text) RETURNS text LANGUAGE plpgsql ...
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0answers
71 views

Index on fields with a function

I have a log table. It logs visitor data (time of visit, browser, window size ...). I want to create reports. I use a query like this (MySQL): SELECT COUNT(*) as raw_views ... FROM logs WHERE ...
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4answers
242 views

Index on 'GROUP BY' with functions

I have a log table. It logs visitor data (time of visit, browser, window size ...). I want to create reports. I use a query like this (MySQL): SELECT COUNT(*) as raw_views ... FROM logs WHERE ...
0
votes
1answer
50 views

different outcome based on function execution method

I am mainlining a legacy system and realize that the answer to this may take a deeper explanation of the code but before I go that far I wanted to make sure the solution wasn't something more simple. ...