diff --git a/config.json b/config.json
index 49fec57..4ecaade 100644
--- a/config.json
+++ b/config.json
@@ -673,6 +673,14 @@
         "practices": [],
         "prerequisites": [],
         "difficulty": 8
+      },
+      {
+        "slug": "line-up",
+        "name": "Line up",
+        "uuid": "bb005a57-11f8-4379-b181-cfb799b04a8f",
+        "practices": [],
+        "prerequisites": [],
+        "difficulty": 3
       }
     ]
   },
diff --git a/exercises/practice/line-up/.docs/instructions.md b/exercises/practice/line-up/.docs/instructions.md
new file mode 100644
index 0000000..fb41d4c
--- /dev/null
+++ b/exercises/practice/line-up/.docs/instructions.md
@@ -0,0 +1,19 @@
+# Instructions
+
+Given a name and a number, your task is to produce a sentence using that name and that number as an [ordinal numeral][ordinal-numeral].
+Yaʻqūb expects to use numbers from 1 up to 999.
+
+Rules:
+
+- Numbers ending in 1 (except for 11) → `"st"`
+- Numbers ending in 2 (except for 12) → `"nd"`
+- Numbers ending in 3 (except for 13) → `"rd"`
+- All other numbers → `"th"`
+
+Examples:
+
+- `"Mary", 1` → `"Mary, you are the 1st customer we serve today. Thank you!"`
+- `"John", 12` → `"John, you are the 12th customer we serve today. Thank you!"`
+- `"Dahir", 162` → `"Dahir, you are the 162nd customer we serve today. Thank you!"`
+
+[ordinal-numeral]: https://en.wikipedia.org/wiki/Ordinal_numeral
diff --git a/exercises/practice/line-up/.docs/introduction.md b/exercises/practice/line-up/.docs/introduction.md
new file mode 100644
index 0000000..ea07268
--- /dev/null
+++ b/exercises/practice/line-up/.docs/introduction.md
@@ -0,0 +1,7 @@
+# Introduction
+
+Your friend Yaʻqūb works the counter at a deli in town, slicing, weighing, and wrapping orders for a line of hungry customers that gets longer every day.
+Waiting customers are starting to lose track of who is next, so he wants numbered tickets they can use to track the order in which they arrive.
+
+To make the customers feel special, he does not want the ticket to have only a number on it.
+They shall get a proper English sentence with their name and number on it.
diff --git a/exercises/practice/line-up/.meta/config.json b/exercises/practice/line-up/.meta/config.json
new file mode 100644
index 0000000..c91280d
--- /dev/null
+++ b/exercises/practice/line-up/.meta/config.json
@@ -0,0 +1,19 @@
+{
+  "authors": [
+    "jimmytty"
+  ],
+  "files": {
+    "solution": [
+      "line-up.sql"
+    ],
+    "test": [
+      "line-up_test.sql"
+    ],
+    "example": [
+      ".meta/example.sql"
+    ]
+  },
+  "blurb": "Help lining up customers at Yaʻqūb's Deli.",
+  "source": "mk-mxp, based on previous work from Exercism contributors codedge and neenjaw",
+  "source_url": "https://forum.exercism.org/t/new-exercise-ordinal-numbers/19147"
+}
diff --git a/exercises/practice/line-up/.meta/example.sql b/exercises/practice/line-up/.meta/example.sql
new file mode 100644
index 0000000..04f96d4
--- /dev/null
+++ b/exercises/practice/line-up/.meta/example.sql
@@ -0,0 +1,15 @@
+UPDATE "line-up"
+SET
+  result = PRINTF(
+    '%s, you are the %s customer we serve today. Thank you!',
+    name,
+    CASE
+      WHEN number % 10 = 1
+      AND number % 100 != 11 THEN number || 'st'
+      WHEN number % 10 = 2
+      AND number % 100 != 12 THEN number || 'nd'
+      WHEN number % 10 = 3
+      AND number % 100 != 13 THEN number || 'rd'
+      ELSE number || 'th'
+    END
+  );
diff --git a/exercises/practice/line-up/.meta/tests.toml b/exercises/practice/line-up/.meta/tests.toml
new file mode 100644
index 0000000..36fdf1d
--- /dev/null
+++ b/exercises/practice/line-up/.meta/tests.toml
@@ -0,0 +1,67 @@
+# This is an auto-generated file.
+#
+# Regenerating this file via `configlet sync` will:
+# - Recreate every `description` key/value pair
+# - Recreate every `reimplements` key/value pair, where they exist in problem-specifications
+# - Remove any `include = true` key/value pair (an omitted `include` key implies inclusion)
+# - Preserve any other key/value pair
+#
+# As user-added comments (using the # character) will be removed when this file
+# is regenerated, comments can be added via a `comment` key.
+
+[7760d1b8-4864-4db4-953b-0fa7c047dbc0]
+description = "format smallest non-exceptional ordinal numeral 4"
+
+[e8b7c715-6baa-4f7b-8fb3-2fa48044ab7a]
+description = "format greatest single digit non-exceptional ordinal numeral 9"
+
+[f370aae9-7ae7-4247-90ce-e8ff8c6934df]
+description = "format non-exceptional ordinal numeral 5"
+
+[37f10dea-42a2-49de-bb92-0b690b677908]
+description = "format non-exceptional ordinal numeral 6"
+
+[d8dfb9a2-3a1f-4fee-9dae-01af3600054e]
+description = "format non-exceptional ordinal numeral 7"
+
+[505ec372-1803-42b1-9377-6934890fd055]
+description = "format non-exceptional ordinal numeral 8"
+
+[8267072d-be1f-4f70-b34a-76b7557a47b9]
+description = "format exceptional ordinal numeral 1"
+
+[4d8753cb-0364-4b29-84b8-4374a4fa2e3f]
+description = "format exceptional ordinal numeral 2"
+
+[8d44c223-3a7e-4f48-a0ca-78e67bf98aa7]
+description = "format exceptional ordinal numeral 3"
+
+[6c4f6c88-b306-4f40-bc78-97cdd583c21a]
+description = "format smallest two digit non-exceptional ordinal numeral 10"
+
+[e257a43f-d2b1-457a-97df-25f0923fc62a]
+description = "format non-exceptional ordinal numeral 11"
+
+[bb1db695-4d64-457f-81b8-4f5a2107e3f4]
+description = "format non-exceptional ordinal numeral 12"
+
+[60a3187c-9403-4835-97de-4f10ebfd63e2]
+description = "format non-exceptional ordinal numeral 13"
+
+[2bdcebc5-c029-4874-b6cc-e9bec80d603a]
+description = "format exceptional ordinal numeral 21"
+
+[74ee2317-0295-49d2-baf0-d56bcefa14e3]
+description = "format exceptional ordinal numeral 62"
+
+[b37c332d-7f68-40e3-8503-e43cbd67a0c4]
+description = "format exceptional ordinal numeral 100"
+
+[0375f250-ce92-4195-9555-00e28ccc4d99]
+description = "format exceptional ordinal numeral 101"
+
+[0d8a4974-9a8a-45a4-aca7-a9fb473c9836]
+description = "format non-exceptional ordinal numeral 112"
+
+[06b62efe-199e-4ce7-970d-4bf73945713f]
+description = "format exceptional ordinal numeral 123"
diff --git a/exercises/practice/line-up/create_fixture.sql b/exercises/practice/line-up/create_fixture.sql
new file mode 100644
index 0000000..9efd5ac
--- /dev/null
+++ b/exercises/practice/line-up/create_fixture.sql
@@ -0,0 +1,14 @@
+DROP TABLE IF EXISTS "line-up";
+
+CREATE TABLE "line-up" (
+  name TEXT NOT NULL,
+  number INTEGER NOT NULL,
+  result TEXT
+);
+
+.mode csv
+.import ./data.csv "line-up"
+
+UPDATE "line-up"
+SET
+  result = NULL;
diff --git a/exercises/practice/line-up/create_test_table.sql b/exercises/practice/line-up/create_test_table.sql
new file mode 100644
index 0000000..1322eb0
--- /dev/null
+++ b/exercises/practice/line-up/create_test_table.sql
@@ -0,0 +1,154 @@
+DROP TABLE IF EXISTS tests;
+
+CREATE TABLE IF NOT EXISTS tests (
+  -- uuid and description are taken from the test.toml file
+  uuid TEXT PRIMARY KEY,
+  description TEXT NOT NULL,
+  -- The following section is needed by the online test-runner
+  status TEXT DEFAULT 'fail',
+  message TEXT,
+  output TEXT,
+  test_code TEXT,
+  task_id INTEGER DEFAULT NULL,
+  -- Here are columns for the actual tests
+  name TEXT NOT NULL,
+  number INTEGER NOT NULL,
+  expected TEXT NOT NULL
+);
+
+INSERT INTO
+  tests (uuid, description, name, number, expected)
+VALUES
+  (
+    '7760d1b8-4864-4db4-953b-0fa7c047dbc0',
+    'format smallest non-exceptional ordinal numeral 4',
+    'Gianna',
+    4,
+    'Gianna, you are the 4th customer we serve today. Thank you!'
+  ),
+  (
+    'e8b7c715-6baa-4f7b-8fb3-2fa48044ab7a',
+    'format greatest single digit non-exceptional ordinal numeral 9',
+    'Maarten',
+    9,
+    'Maarten, you are the 9th customer we serve today. Thank you!'
+  ),
+  (
+    'f370aae9-7ae7-4247-90ce-e8ff8c6934df',
+    'format non-exceptional ordinal numeral 5',
+    'Petronila',
+    5,
+    'Petronila, you are the 5th customer we serve today. Thank you!'
+  ),
+  (
+    '37f10dea-42a2-49de-bb92-0b690b677908',
+    'format non-exceptional ordinal numeral 6',
+    'Attakullakulla',
+    6,
+    'Attakullakulla, you are the 6th customer we serve today. Thank you!'
+  ),
+  (
+    'd8dfb9a2-3a1f-4fee-9dae-01af3600054e',
+    'format non-exceptional ordinal numeral 7',
+    'Kate',
+    7,
+    'Kate, you are the 7th customer we serve today. Thank you!'
+  ),
+  (
+    '505ec372-1803-42b1-9377-6934890fd055',
+    'format non-exceptional ordinal numeral 8',
+    'Maximiliano',
+    8,
+    'Maximiliano, you are the 8th customer we serve today. Thank you!'
+  ),
+  (
+    '8267072d-be1f-4f70-b34a-76b7557a47b9',
+    'format exceptional ordinal numeral 1',
+    'Mary',
+    1,
+    'Mary, you are the 1st customer we serve today. Thank you!'
+  ),
+  (
+    '4d8753cb-0364-4b29-84b8-4374a4fa2e3f',
+    'format exceptional ordinal numeral 2',
+    'Haruto',
+    2,
+    'Haruto, you are the 2nd customer we serve today. Thank you!'
+  ),
+  (
+    '8d44c223-3a7e-4f48-a0ca-78e67bf98aa7',
+    'format exceptional ordinal numeral 3',
+    'Henriette',
+    3,
+    'Henriette, you are the 3rd customer we serve today. Thank you!'
+  ),
+  (
+    '6c4f6c88-b306-4f40-bc78-97cdd583c21a',
+    'format smallest two digit non-exceptional ordinal numeral 10',
+    'Alvarez',
+    10,
+    'Alvarez, you are the 10th customer we serve today. Thank you!'
+  ),
+  (
+    'e257a43f-d2b1-457a-97df-25f0923fc62a',
+    'format non-exceptional ordinal numeral 11',
+    'Jacqueline',
+    11,
+    'Jacqueline, you are the 11th customer we serve today. Thank you!'
+  ),
+  (
+    'bb1db695-4d64-457f-81b8-4f5a2107e3f4',
+    'format non-exceptional ordinal numeral 12',
+    'Juan',
+    12,
+    'Juan, you are the 12th customer we serve today. Thank you!'
+  ),
+  (
+    '60a3187c-9403-4835-97de-4f10ebfd63e2',
+    'format non-exceptional ordinal numeral 13',
+    'Patricia',
+    13,
+    'Patricia, you are the 13th customer we serve today. Thank you!'
+  ),
+  (
+    '2bdcebc5-c029-4874-b6cc-e9bec80d603a',
+    'format exceptional ordinal numeral 21',
+    'Washi',
+    21,
+    'Washi, you are the 21st customer we serve today. Thank you!'
+  ),
+  (
+    '74ee2317-0295-49d2-baf0-d56bcefa14e3',
+    'format exceptional ordinal numeral 62',
+    'Nayra',
+    62,
+    'Nayra, you are the 62nd customer we serve today. Thank you!'
+  ),
+  (
+    'b37c332d-7f68-40e3-8503-e43cbd67a0c4',
+    'format exceptional ordinal numeral 100',
+    'John',
+    100,
+    'John, you are the 100th customer we serve today. Thank you!'
+  ),
+  (
+    '0375f250-ce92-4195-9555-00e28ccc4d99',
+    'format exceptional ordinal numeral 101',
+    'Zeinab',
+    101,
+    'Zeinab, you are the 101st customer we serve today. Thank you!'
+  ),
+  (
+    '0d8a4974-9a8a-45a4-aca7-a9fb473c9836',
+    'format non-exceptional ordinal numeral 112',
+    'Knud',
+    112,
+    'Knud, you are the 112th customer we serve today. Thank you!'
+  ),
+  (
+    '06b62efe-199e-4ce7-970d-4bf73945713f',
+    'format exceptional ordinal numeral 123',
+    'Yma',
+    123,
+    'Yma, you are the 123rd customer we serve today. Thank you!'
+  );
diff --git a/exercises/practice/line-up/data.csv b/exercises/practice/line-up/data.csv
new file mode 100644
index 0000000..47929c6
--- /dev/null
+++ b/exercises/practice/line-up/data.csv
@@ -0,0 +1,19 @@
+Gianna,4,
+Maarten,9,
+Petronila,5,
+Attakullakulla,6,
+Kate,7,
+Maximiliano,8,
+Mary,1,
+Haruto,2,
+Henriette,3,
+Alvarez,10,
+Jacqueline,11,
+Juan,12,
+Patricia,13,
+Washi,21,
+Nayra,62,
+John,100,
+Zeinab,101,
+Knud,112,
+Yma,123,
diff --git a/exercises/practice/line-up/line-up.sql b/exercises/practice/line-up/line-up.sql
new file mode 100644
index 0000000..ada7ede
--- /dev/null
+++ b/exercises/practice/line-up/line-up.sql
@@ -0,0 +1,8 @@
+-- Schema:
+-- CREATE TABLE "line-up" (
+--   name   TEXT    NOT NULL,
+--   number INTEGER NOT NULL,
+--   result TEXT
+-- );
+--
+-- Task: Update the line-up table and set the result column based on the name and the number.
diff --git a/exercises/practice/line-up/line-up_test.sql b/exercises/practice/line-up/line-up_test.sql
new file mode 100644
index 0000000..88489cb
--- /dev/null
+++ b/exercises/practice/line-up/line-up_test.sql
@@ -0,0 +1,65 @@
+-- Create database:
+.read ./create_fixture.sql
+-- Read user student solution and save any output as markdown in user_output.md:
+.mode markdown
+.output user_output.md
+.read ./line-up.sql
+.output
+-- Create a clean testing environment:
+.read ./create_test_table.sql
+-- Comparison of user input and the tests updates the status for each test:
+UPDATE tests
+SET
+  status = 'pass'
+FROM
+  (
+    SELECT
+      name,
+      number,
+      result
+    FROM
+      "line-up"
+  ) AS actual
+WHERE
+  (actual.name, actual.number, actual.result) = (tests.name, tests.number, tests.expected);
+
+-- Update message for failed tests to give helpful information:
+UPDATE tests
+SET
+  message = (
+    'Result for "' || PRINTF('name=%s, number=%s', tests.name, tests.number) || '"' || ' is <' || COALESCE(actual.result, 'NULL') || '> but should be <' || tests.expected || '>'
+  )
+FROM
+  (
+    SELECT
+      name,
+      number,
+      result
+    FROM
+      "line-up"
+  ) AS actual
+WHERE
+  (actual.name, actual.NUMBER) = (tests.name, tests.number)
+  AND tests.status = 'fail';
+
+-- Save results to ./output.json (needed by the online test-runner)
+.mode json
+.once './output.json'
+SELECT
+  description,
+  status,
+  message,
+  output,
+  test_code,
+  task_id
+FROM
+  tests;
+
+-- Display test results in readable form for the student:
+.mode table
+SELECT
+  description,
+  status,
+  message
+FROM
+  tests;