{"id":214,"date":"2021-03-22T16:14:15","date_gmt":"2021-03-22T16:14:15","guid":{"rendered":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/?page_id=214"},"modified":"2021-03-25T15:40:26","modified_gmt":"2021-03-25T15:40:26","slug":"ddl-code","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/creating-a-database\/ddl-code\/","title":{"rendered":"DDL Code"},"content":{"rendered":"<h1><span style=\"color: #339966\">Level &#8211; National 5+<\/span><\/h1>\n<h1>Checking for Correctness<\/h1>\n<p>As you have been creating tables, the SQL command to create that table has been displayed at the bottom of the &#8220;Edit table definition&#8221; window:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-319\" src=\"https:\/\/blogs.glowscotland.org.uk\/sh\/public\/ahscomputingsql\/uploads\/sites\/3269\/2021\/03\/24151004\/DB4SQL-DDL.png\" alt=\"\" width=\"524\" height=\"138\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/sh\/public\/ahscomputingsql\/uploads\/sites\/3269\/2021\/03\/24151004\/DB4SQL-DDL.png 524w, https:\/\/glow-prod-sh.s3.eu-west-1.amazonaws.com\/sh\/public\/ahscomputingsql\/uploads\/sites\/3269\/2021\/03\/24151004\/DB4SQL-DDL-300x79.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJD%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIB%2FLi5KFhXaJskeWEvUJAoKEOCiPqeZaxKV3EEQcNH3rAiA64DX5CvzvxxXbaqTClatDZTqtKcoJ3lqdic6TR1%2FR1Cq4BQhZEAUaDDI3MzU3MDE5NTQzMyIMqu0X2zf5pgvi3O9vKpUFxgk8suS4sXNKPwW9nz1Dl2FEo8yR9xYvvJYQ9a8Pd6MRmwylVFjRntEVnhOdkylOousMNzDKKrhxitrntdN0gQefWl%2Ff1Equ5NWNyXAoi%2F2sCAjylBJXIOUUaRP%2FG%2F3phfiqt7eV9OPAR2OZop9s7QDuN9uZ0hC3iLWD8TLPp%2BLpBrMsfMF28iV6FnAAxDxITstBNM7vXLqHuzwn9ol0mF8LG0l1kZGB17vjQEvjnNWi0XGV7aLp1V1qLBZF1LlarzKIydb3YdIEF7ZNMboLrCZ%2BWZSU87ZX2%2F0rwgmY2U2IRiDxx3spPBjodwZRujQuzWnc5pqGdeT4fK4VRxT%2BB1Bh8Kz%2FC0hLMispR8dr2Sfp38%2FL2dSb5w6Jt2E8icol3B8OXnEmT6P7Bce8JvRUjvrMdLdagtJkAFGwJ3eoPN0qxhO39b204sVOoDFkoUo7Q%2BM7w9Tq%2B3NvHBSVPp9LVjsvrV6N4%2Fl3reQbrrl5EYms77HyrRpvimzlTg4iQHXGDISFrb6o2QBHY89%2FkZCnNb5ciecoRGlarY7TiCN5S2sk7OuH09Oy6AeuEkQnk8Qn3b9drVPGcvI9eAqRruCd8eEoNvX7cRuF1Z0YJzUyoWxzP1KdKvDiVBgyNqbbKl2dWD0AqILrYYvui6M6lvnD5jBOnxCtrAxr0mpvWHXMRnKGEX351n89l6nd8ZGJ7Z%2F6jmDYq38HcanJVsp9n%2FiuWeDb7K2Dv1BcaILbtPTQZvCytSNXomGZcb312PKzW0vpANPEKe2b3k2Szl8e22Bnv7tRSqh5K6GmsVaZsbBADxLvAmxknNjSvObqLrifFVPBAQsvCeKUMYW9%2FnxcIek6bvP8DfbeVahFa8dpSMe0ttbdfOu%2BZTDqv4bRBjqyAR1CeaU4pIkQcehY6Mas9jjPfE8gqouKog2nKEHJOKFcSQSXrOYDVIVWBC1mhsKDRszB8xYPMgeNeY85FnQElrv94HSDVBWdRma7l8EvIEl0bMBTvq31KistvcbLY%2F7z66E19zMb7n1y9t0Yu4yY8tCzEZRPMnNXpAZMCRjtYo0Z8Ak7XrVOL2dxs%2BoGsNPAsMBpMN1IhG5%2BlWcnhQRuQPaXswx5f3VzkRiOdxc7DTwBxRI%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UUYL333RQ%2F20260604%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260604T160443Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4a7161368811cb089bd79fbf921b56941346f502e3a5f1b39fa94e58727d30af 300w\" sizes=\"auto, (max-width: 524px) 100vw, 524px\" \/><\/p>\n<p><em>Note: Quotation marks may have been added to table\/field names, and any other text.<\/em><\/p>\n<p>Compare this with every item on your data dictionary:<\/p>\n<ul>\n<li>Are your field names correct?<\/li>\n<li>Are the data types correct?<\/li>\n<\/ul>\n<ul>\n<li>Is there a Primary key?<\/li>\n<li>Is the Primary key Unique?<\/li>\n<li>Is the Primary key Not Null?<\/li>\n<li>Are foreign keys connected to the correct table and field?<\/li>\n<\/ul>\n<ul>\n<li>Are required fields set to \u201cNot Null\u201d?<\/li>\n<li>Are your length checks correct?<\/li>\n<li>Are your range checks correct?<\/li>\n<li>Are your restricted choice checks correct?<\/li>\n<\/ul>\n<h1>Printing Evidence<\/h1>\n<p>This DDL code can copied and pasted into a Word document, but it will lose any autoformatting:<\/p>\n<pre>CREATE TABLE \"appointments\" (\n\"appointment_id\" INTEGER,\n\"customer_id\" INTEGER,\n\"date\" TEXT,\n\"time\" TEXT,\n\"completed\" NUMERIC,\nFOREIGN KEY(\"customer_id\") REFERENCES \"customers\"(\"customer_id\")\n);<\/pre>\n<p>Using the Snipping Tool will keep the autoformatting, making it easier to read:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-319\" src=\"https:\/\/blogs.glowscotland.org.uk\/sh\/public\/ahscomputingsql\/uploads\/sites\/3269\/2021\/03\/24151004\/DB4SQL-DDL.png\" alt=\"\" width=\"524\" height=\"138\" srcset=\"https:\/\/blogs.glowscotland.org.uk\/sh\/public\/ahscomputingsql\/uploads\/sites\/3269\/2021\/03\/24151004\/DB4SQL-DDL.png 524w, https:\/\/glow-prod-sh.s3.eu-west-1.amazonaws.com\/sh\/public\/ahscomputingsql\/uploads\/sites\/3269\/2021\/03\/24151004\/DB4SQL-DDL-300x79.png?X-Amz-Content-Sha256=UNSIGNED-PAYLOAD&amp;X-Amz-Security-Token=IQoJb3JpZ2luX2VjEJD%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJGMEQCIB%2FLi5KFhXaJskeWEvUJAoKEOCiPqeZaxKV3EEQcNH3rAiA64DX5CvzvxxXbaqTClatDZTqtKcoJ3lqdic6TR1%2FR1Cq4BQhZEAUaDDI3MzU3MDE5NTQzMyIMqu0X2zf5pgvi3O9vKpUFxgk8suS4sXNKPwW9nz1Dl2FEo8yR9xYvvJYQ9a8Pd6MRmwylVFjRntEVnhOdkylOousMNzDKKrhxitrntdN0gQefWl%2Ff1Equ5NWNyXAoi%2F2sCAjylBJXIOUUaRP%2FG%2F3phfiqt7eV9OPAR2OZop9s7QDuN9uZ0hC3iLWD8TLPp%2BLpBrMsfMF28iV6FnAAxDxITstBNM7vXLqHuzwn9ol0mF8LG0l1kZGB17vjQEvjnNWi0XGV7aLp1V1qLBZF1LlarzKIydb3YdIEF7ZNMboLrCZ%2BWZSU87ZX2%2F0rwgmY2U2IRiDxx3spPBjodwZRujQuzWnc5pqGdeT4fK4VRxT%2BB1Bh8Kz%2FC0hLMispR8dr2Sfp38%2FL2dSb5w6Jt2E8icol3B8OXnEmT6P7Bce8JvRUjvrMdLdagtJkAFGwJ3eoPN0qxhO39b204sVOoDFkoUo7Q%2BM7w9Tq%2B3NvHBSVPp9LVjsvrV6N4%2Fl3reQbrrl5EYms77HyrRpvimzlTg4iQHXGDISFrb6o2QBHY89%2FkZCnNb5ciecoRGlarY7TiCN5S2sk7OuH09Oy6AeuEkQnk8Qn3b9drVPGcvI9eAqRruCd8eEoNvX7cRuF1Z0YJzUyoWxzP1KdKvDiVBgyNqbbKl2dWD0AqILrYYvui6M6lvnD5jBOnxCtrAxr0mpvWHXMRnKGEX351n89l6nd8ZGJ7Z%2F6jmDYq38HcanJVsp9n%2FiuWeDb7K2Dv1BcaILbtPTQZvCytSNXomGZcb312PKzW0vpANPEKe2b3k2Szl8e22Bnv7tRSqh5K6GmsVaZsbBADxLvAmxknNjSvObqLrifFVPBAQsvCeKUMYW9%2FnxcIek6bvP8DfbeVahFa8dpSMe0ttbdfOu%2BZTDqv4bRBjqyAR1CeaU4pIkQcehY6Mas9jjPfE8gqouKog2nKEHJOKFcSQSXrOYDVIVWBC1mhsKDRszB8xYPMgeNeY85FnQElrv94HSDVBWdRma7l8EvIEl0bMBTvq31KistvcbLY%2F7z66E19zMb7n1y9t0Yu4yY8tCzEZRPMnNXpAZMCRjtYo0Z8Ak7XrVOL2dxs%2BoGsNPAsMBpMN1IhG5%2BlWcnhQRuQPaXswx5f3VzkRiOdxc7DTwBxRI%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UUYL333RQ%2F20260604%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260604T160443Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=4a7161368811cb089bd79fbf921b56941346f502e3a5f1b39fa94e58727d30af 300w\" sizes=\"auto, (max-width: 524px) 100vw, 524px\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Level &#8211; National 5+ Checking for Correctness As you have been creating tables, the SQL command to create that table has been displayed at the bottom of the &#8220;Edit table definition&#8221; window: Note: Quotation marks may have been added to table\/field names, and any other text. Compare this with every item on your data dictionary: Are your field names correct? Are the data types correct? Is there a Primary key?<\/p>\n<p><a class=\"more-link\" href=\"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/creating-a-database\/ddl-code\/\">Read More<\/a><\/p>\n","protected":false},"author":7,"featured_media":0,"parent":262,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-214","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/pages\/214","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/comments?post=214"}],"version-history":[{"count":8,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/pages\/214\/revisions"}],"predecessor-version":[{"id":408,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/pages\/214\/revisions\/408"}],"up":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/pages\/262"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/sh\/ahscomputingsql\/wp-json\/wp\/v2\/media?parent=214"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}