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AL practice problems

Basics

First steps — table and page extensions, fields, enums, simple triggers.

84 problems66 easy18 medium9 Pro

Start here: Hello, World!
Difficulty
All
All
Easy
Medium
Hard
Status
All
All
Todo
Attempted
Solved
TITLE
DIFFICULTY
PASS RATE
TOPIC
ATTEMPTS
#0001Hello, World!
Easy
94%
Basics
594
#0002Add a Custom Field to Customer
Easy
98%
Basics
198
#0003Print the Eight-Line Address Block
Easy
96%
Basics
69
#0004Block Negative Credit Limits
Easy
100%
Basics
68
#0005Classify Your Fields
Easy
75%
Basics
46
#0006Deep Copy Nested Collections
Easy
83%
Basics
31
#0007Point One Field at Three Tables
Easy
100%
Basics
50
#0008Ask Only When It Matters
Easy
100%
Basics
54
#0009Round Like the Currency Says
Easy
100%
Basics
28
#0010Detect Real Changes Despite SQL DateTime Rounding
Easy
100%
Basics
17
#0011abc-1 Is ABC-1
Easy
100%
Basics
25
#0012Pallets, Boxes, and Loose Units
Easy
100%
Basics
17
#0013Elapsed Time as hh:mm:ss
Easy
100%
Basics
104
#0014Map Carrier Wire Codes to an Enum
Easy
100%
Basics
13
#0015Multi-Language Descriptions with the Translation Module
Easy
100%
Basics
3
#0016A 32-Column Receipt
Easy
100%
Basics
9
#0017Five Faces of One Date
Easy
100%
Basics
19
#0018Braces Off, Lowercase On
Easy
0%
Basics
0
#0019Show the Customer Custom Field on the Card
Easy
100%
Basics
29
#0020Make a Proportional Thumbnail
Easy
0%
Basics
0
#0021The Next Serial Number
Easy
100%
Basics
5
#0022Init Doesn't Touch the Key
Easy
100%
Basics
3
#0023Default Values on Insert
Easy
100%
Basics
5
#0024Week 53 of Last Year
Easy
0%
Basics
0
#0025Add a Priority Enum to Items
Easy
100%
Basics
2
#0026\n Is Not a Newline
Easy
0%
Basics
1
#0027Default the Line from the Item Card
Easy
100%
Basics
2
#0028A Stack and a Queue on One List
Easy
0%
Basics
0
#0029Twelve Buckets
Easy
0%
Basics
0
#0030The Night Shift Bug
Easy
100%
Basics
34
#0031The Parse That Throws
Easy
0%
Basics
0
#0032Last Segment, One-Based
Easy
0%
Basics
0
#0033Snapshot or Shared View?
Easy
0%
Basics
0
#0034Customer Notes via Record Links
Easy
100%
Basics
3
#0035Make a Return Reason's Policies Stick
Easy
0%
Basics
0
#0036Two Insert Paths: The RunTrigger Contract
Easy
100%
Basics
2
#0037Copy Text Safely into Code Fields
Easy
0%
Basics
0
#0038A File Name the OS Accepts
Easy
0%
Basics
0
#0039Read Lines, Not Bytes
Easy
0%
Basics
0
#0040Placeholders, Not Concatenation
Easy
100%
Basics
6
#0041Compose Endpoint URLs with Uri Builder
Easy
0%
Basics
0
#0042Recalculate on Validate
Easy
100%
Basics
7
#0043Why Did My Change Vanish?
Easy
0%
Basics
0
#0044The Date Nobody Set
Easy
100%
Basics
3
#0180Mask the Card Number
Easy
100%
Basics
9
#0181Ranges, Not If-Chains
Easy
0%
Basics
0
#0182The Certificate That Expired Before It Existed
Easy
0%
Basics
0
#01831.10 Is Newer Than 1.9
Easy
100%
Basics
17
#0184Two Gigabytes Is Too Many
Easy
0%
Basics
0
#0185Five Switches in One Integer
Easy
0%
Basics
0
#0186The Total That Kept Growing
Easy
0%
Basics
0
#0187A Raffle You Can Replay
Easy
0%
Basics
0
#0188Change the Phone, Keep the Customer
Easy
0%
Basics
0
#0189The Key Has Two Parts
Easy
0%
Basics
0
#0190The Relation That Overflows
Easy
0%
Basics
0
#0191Only This Item's Variants
Easy
0%
Basics
0
#0194Rename Follows the Relation
Easy
0%
Basics
0
#0195The Entry No. You Don't Assign
Easy
100%
Basics
4
#0196Bigger Than 2048
Easy
50%
Basics
10
#0197Sort It Like AL Does
Easy
0%
Basics
0
#0198Where in the Tree Is This Item?
Easy
0%
Basics
0
#0199Let the Base App Convert
Easy
0%
Basics
0
#0211AL Evaluates Both Sides
Easy
50%
Basics
2
#5000Delete the Header, Leave No OrphansPro
Easy
100%
Basics
20
#5001Invoice Two Shipments at OncePro
Easy
100%
Basics
23
#5002Give Every Batch Its Own BufferPro
Easy
100%
Basics
26
#0045Archive a Record with TransferFields
Medium
0%
Basics
0
#0046Build a Sales Order From Code
Medium
0%
Basics
0
#0047Print in the Customer's Language
Medium
0%
Basics
0
#0048A Lab Batch Header That Calculates Itself
Medium
0%
Basics
0
#0049Wire a Document to No. Series
Medium
0%
Basics
0
#0050References That Survive Rename
Medium
0%
Basics
0
#0051Time Zones and Unix Timestamps
Medium
0%
Basics
0
#0052Copy a Record into a Table Whose Field Numbers Disagree
Medium
0%
Basics
0
#0053One Procedure, Any Type
Medium
0%
Basics
0
#0200Rec, Meet OnRun
Medium
0%
Basics
0
#0201A Report That Prints Nothing
Medium
0%
Basics
0
#0202The Words That Follow the Item
Medium
0%
Basics
0
#5003Credit Memo from a Posted InvoicePro
Medium
100%
Basics
13
#5004Build a Media GalleryPro
Medium
100%
Basics
14
#5005Number Plumbing, the Official WayPro
Medium
100%
Basics
3
#5006Rename Any Record from Text ValuesPro
Medium
100%
Basics
22
#5007TransferFields Won't Save YouPro
Medium
100%
Basics
12
#5008Temporary Means No SQLPro
Medium
100%
Basics
2