Guide Firebird et NULL Comportement et précautions au sujet de NULL dans Firebird SQL Paul Vinkenoog Traduction en français: Philippe Makowski 04 mai 2005 - Document version 0.2.1-fr 2 Table des matières support sur Firebird des questions au sujet de « choses étranges » arrivant avec NULLdans Firebird SQL sont posées. Ce concept semble difficile à comprendre - peut être à cause de son nom, qui semble correspondre de ces opérations renvoie toujours NULL. Cet article explore le comportement de NULL dans Firebird SQL, pointe les chausse-trappe habituelles et vous montre comment travailler avec des expressions qui contiennent

..................................................................................... 18 Firebird SQL .................................................................................................. C:\Program Files\Firebird\Firebird_1_5\bin>isql# Use CONNECT or CREATE DATABASE to specify a database SQL>CONNECT "C:\Program Files\Firebird\Firebird_1_5\examples\employee.fdb"# CON>user 'SYSDBA' password password 'masterkey';# Firebird 1.5 Guide de démarrage 16 Important • Dans isql, chaque instruction SQL doit être terminée par un point-virgule. Si vous tapez sur la touche Enter et que la ligne ne se termine

etTestRun ner.java # Installer la base Exemple : psql -U ofbiz -h localhost -f ofbiz-prod.sql monofbiz2 # Lancer load pour test ./ant load-exttest # Lancer Ofbiz (Terminal 2) ./ant

Custom parameter validation example • colors: Colorama ANSI color support • termui: Terminal UI functions demo • imagepipe: Multi command chaining demo 1.2.3 Basic Concepts Click is based on declaring it’s data there. Another way to accomplish this is to setup pipelines by returning processing functions. Think of it like this: when a subcommand gets invoked it processes all of it’s parameters and comes and returns. Where do the returned functions go? The chained multicommand can register a callback with MultiCommand. resultcallback() that goes over all these functions and then invoke them. To make this

URL, so you don't need !includeurl • Some features (like %date%) have been replaced by builtin functions (for example %date()) • When calling a legacy !definelong macro with no arguments, you do have Function names must start with a $ • Argument names must start with a $ • Void functions can call other void functions Example: @startuml !function msg($source, $destination) $source --> $destination langage PlantUML (1.2019.9) 148 / 173 19.5 Return function 19 PREPROCESSING Variables defined in functions are local. It means that the variable is destroyed when the function ends. 19.5 Return function

cannot be converted to int'} The inputs module provides a number of included common conversion functions such as inputs.date() and inputs.url(). Calling parse_args with strict=True ensures that an error make_response(json.dumps(data), code) resp.headers.extend(headers or {}) return resp These representation functions must return a Flask Response [https://flask.palletsprojects.com/en/2.3.x/api/#flask.Response] object ') def output_csv(data, code, headers=None): pass # implement csv output! These output functions take three parameters, data, code, and headers data is the object you return from your resource

URL, so you don't need !includeurl • Some features (like %date%) have been replaced by builtin functions (for example %date()) • When calling a legacy !definelong macro with no arguments, you do have Boolean builtin functions [%false(), %true(), %not()] For convenience, you can use those boolean builtin functions: • %false() • %true() • %not() [See also Builtin functions] 20.4 Conditions function that you can call: • directly in variable definition or in diagram text • from other return functions • from procedures • Function name should start with a $ • Argument names should start with a

URL, so you don't need !includeurl • Some features (like %date%) have been replaced by builtin functions (for example %date()) • When calling a legacy !definelong macro with no arguments, you do have Boolean builtin functions [%false(), %true(), %not()] For convenience, you can use those boolean builtin functions: • %false() • %true() • %not() [See also Builtin functions] 20.4 Conditions function that you can call: • directly in variable definition or in diagram text • from other return functions • from procedures • Function name should start with a $ • Argument names should start with a

URL, so you don't need !includeurl • Some features (like %date%) have been replaced by builtin functions (for example %date()) • When calling a legacy !definelong macro with no arguments, you do have created outside function are global, that is you can access to them from everywhere (including from functions). You can emphasize this by using the optional global keyword when defining a variable. @startuml Function name should start by a $ • Argument names should start by a $ • Void functions can call other void functions Example: @startuml !function msg($source, $destination) $source --> $destination

URL, so you don’t need !includeurl • Some features (like %date%) have been replaced by builtin functions (for example %date()) • When calling a legacy !definelong macro with no arguments, you do have created outside function are global, that is you can access them from everywhere (including from functions). You can emphasize this by using the optional global keyword when defining a variable. @startuml Boolean builtin functions [%false(), %true(), %not()] For convenience, you can use those boolean builtin functions: • %false() • %true() • %not() [See also Builtin functions] 24.4 Conditions