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Questions tagged [parameter]

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7
votes
1answer
3k views

How to use an array as argument to a VARIADIC function in PostgreSQL?

I am trying to make a case-insensitive version of json_extract_path_text(), using the citext module. I would like this to be a simple wrapper around the built-in function, the only difference being ...
16
votes
1answer
5k views

Naming conflict between function parameter and result of JOIN with USING clause

Given this setup in current Postgres 9.4 (from this related question): CREATE TABLE foo (ts, foo) AS VALUES (1, 'A') -- int, text , (7, 'B'); CREATE TABLE bar (ts, bar) AS VALUES (3, 'C') ...
53
votes
2answers
5k views

How to create Unicode parameter and variable names

All of this works: CREATE DATABASE [¯\_(ツ)_/¯]; GO USE [¯\_(ツ)_/¯]; GO CREATE SCHEMA [¯\_(ツ)_/¯]; GO CREATE TABLE [¯\_(ツ)_/¯].[¯\_(ツ)_/¯]([¯\_(ツ)_/¯] NVARCHAR(20)); GO CREATE UNIQUE CLUSTERED INDEX [¯...
33
votes
3answers
57k views

Table-Valued Parameter as Output parameter for stored procedure

Is it possibile to Table-Valued parameter be used as output param for stored procedure ? Here is, what I want to do in code /*First I create MY type */ CREATE TYPE typ_test AS TABLE ( id int ...
19
votes
2answers
8k views

Why must TVPs be READONLY, and why can't parameters of other types be READONLY

According to this blog parameters to a function or a stored procedure are essentially pass-by-value if they aren't OUTPUT parameters, and essentially treated as a safer version of pass-by-reference if ...
11
votes
1answer
64k views

PLS-00306 Error: How to find the wrong argument?

PLS-00306: wrong number or types of arguments in call to 'string' Cause: This error occurs when the named subprogram call cannot be matched to any declaration for that subprogram name. The ...
7
votes
1answer
3k views

Output parameter not set if stored procedure fails inside a TRY / CATCH

In SQL Server 2008 (but also in 2014). Let's consider a procedure that has an output parameter. This procedure may produce an error (and will in the following example). I note that the behaviour of ...
7
votes
2answers
13k views

PostgresSQL dynamic execute with argument values in array

I'm wondering if this is possible in Postgres: Best explained using a contrived example: create or replace function test_function(filter_param1 varchar default null ...
6
votes
1answer
19k views

How to use function parameters in dynamic SQL with EXECUTE?

I have written a PL/pgSQL function in PostgreSQL 9.5. It compiles well but when I call it from pgAdmin3 it gives me an error. It seems like the dynamic query with columns to be replaced with the ...
2
votes
1answer
9k views

Is it possible to query value of SQLNET.EXPIRE_TIME parameter?

Can somebody advice whether it is possible to query for current value of SQLNET.EXPIRE_TIME parameter in Oracle 11 DB? Should select * from v$parameter return value of SQLNET.EXPIRE_TIME (if it ...
0
votes
2answers
117 views

Parameterized Dynamic TSQL - Dynamic Parameters

We have a situation where effectively the same report is requested by different customers but they: Don't want all the columns Want the columns in a different order than we naturally have them Want ...
13
votes
1answer
233 views

What allows SQL Server to trade an object name for a string passed to a system procedure

What causes it to be legal to pass an object name to the system stored procedure sp_helptext? What mechanism converts the object name to a string? e.g. -- works sp_helptext myproc sp_helptext [...
10
votes
1answer
658 views

Poor query performance

We have a large (10,000+ lines) procedure that typically runs in 0.5-6.0 seconds depending on how much data it has to work with. Over the past month or so it has started taking 30+ seconds after we do ...
5
votes
2answers
3k views

SQL Server: Do Statistics Updates cause query plans to be flushed? Should they?

I've found that a big, nasty data-extraction query that runs daily needs updated stats to avoid making horrible query plans based on incorrect rowcount estimates (let's not worry about whether or not ...
3
votes
3answers
1k views

AddWithValue performance and plan cache implications

Recently I noticed my company's application using AddWithValueto pass parameter values to dynamic, parameterized queries. Example: cmd.Parameters.AddWithValue("@VehicleId", Vehicles.VehicleId); In ...
3
votes
2answers
2k views

Assign the result of current_setting('the_setting') to a variable in PL/pgSQL

I have a function where I need to get a configuration parameter and assign it to a variable that I will use later in the function. The problem is that when the configuration parameter is not ...
3
votes
1answer
213 views

Can't find compiled parameters values in the plan cache

I have found, through the query store, a query that's performing on average 297582 logical reads. I wanted to see if I was able to tune that query a bit, and after that, try to execute the query ...
1
vote
2answers
16k views

RETURN value directly from INSERT with RETURNING clause

I have a function that ends with: INSERT INTO configuration_dates ( cols... ) VALUES ( values... ) RETURNING id INTO ret_id; RETURN ret_id; And I would like to remove the ...
1
vote
1answer
816 views

Passing array from one plpgsql function to another

I have a function in PostgreSQL 9.4 that calls another function. Both are written in plpgsql. The child function takes an array argument representing IDs from a table that is used to create a new ...
1
vote
2answers
860 views

Insert values from a record variable into a subclass table

My goal is to create a stored procedure that builds up a _tbl_out which is a subclass of a _tbl_in. I'm following the results of this question, but for this to work, the tables need to have the SAME ...
1
vote
1answer
829 views

How to pass an array to a plpgsql function with VARIADIC parameter

I am trying to define a plpgsql function in Postgresql 10 with several parameters, including an array. I have already defined the function CREATE OR REPLACE FUNCTION mix_table_fields(...
1
vote
1answer
521 views

Make query depend on input in PostgreSQL function

I have a simple query: CREATE OR REPLACE FUNCTION companies_all_teams( IN _company_name text = NULL, IN _company_id int = NULL, OUT _result text ) AS $$ BEGIN _result := (SELECT json_agg(...
0
votes
1answer
4k views

INSERT INTO statement with parameters for tableName, columns and values?

Is it possible to have an SP that looks something like this: DECLARE @tableName = null; DECLARE @cols = null; DECLARE @values = null; INSERT INTO @tableName @cols @values; The resultant query looks ...