{"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 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=IQoJb3JpZ2luX2VjEL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIFiTfkwcNFWDGBJ7Sfdy8WiGh6eBQxX6haJJxrisIf1cAiEAjYyM29mztLxNz%2BKN244YS8LW%2Bg6iTPfah%2F556YV3UAMqwgUIh%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDM4B5KZ7jyedUDC0LCqWBbAmrrUvIhmtX7sP0zi5gAohHz3RYwUG9NHx4DPekS6DJ%2B7Nh8JM35Y2NtOs%2F3KX9Zoiu7h0AzcVHCu7LMcA1L5aEecLETUhEtMMNbpd0%2BDJDb0Xb0MI%2BPyP1AKk1dRJlVZuSswcvbbcxxHqKqKPg6CKlJKijm7LQDliYfWXuef9t3NRmOXaoKphFLUq6h0WG46fGRL2E%2B%2Bb7wpqu0CaZpBBByiuqDMmfXqHauvZWSUuY%2B%2FXX4moCLzLFgbzywsiu8JoKglloiN6cfsx7ROBrGyUTKzWbjcqlfXk87TL%2BDtRNY2R9iypXL7GUtUDn8pWNygQXeL%2BtshJIqj27wzYcQW99cGAIpO1rv4HzXGfo6tzoRbKlIzpS4B8K2kBqydSgivGCc8W3CWQVVB2XLbVCJXpo8x8iUeX170arB6DmIlq1i6ZelqZ9ye5osyhXbd%2BxKG82nAY21DMrsWbt3WPkx%2FxMkg6eYuZOUsicX%2FEXItAWQRie30DLcNXDR5bfzcrKViLOMYI1WoqT8Zx4HvQAVB0I0qqm9QD0lmzaGPwi%2FqXgCUrOBZAIWLQwOzNxCdIyvd39SxvRGdbiI7CAJpnpiagFk3JXI1WG8w9YB9If1bHXnQkS8nsPb4gF6T%2FjvrikDq6D0OIko7GbJSkTWByl285TFOoe8b%2FL%2FcNfXPNQ72CPgZCkwamR%2F21SXCPGe2JFce661Nsl3E9C%2F2l3fcz873%2B02o6KDyXcyqV3i1b%2BYDppL5bGTOXRu6D%2Fx%2BwwYy5cyo1ptPdpgtmz230N%2FmWFO%2B3zvCRpAsicfmIJjTh%2Bl92Roc9YWMHbNHux%2FibReKXYi4zq4wJsp8hL99yNmvp1Q%2BpQpNvabdkN45yFaexv%2BTkzu3HEn4PMKj4itUGOrEBNvTbmFZXdZRUtjlW8zr7G2l2MmPKJVaMoQ%2FAUe1CmCwuKPnt1Br8Vn%2FiWoDhv42Ktshbl3YQ78uvLIeeqMUKf1C8c7EjSnwQMXo%2FEVK6LHHsaK54NPl%2BeS37qeEWkw8On4nz0AEYQEpe2N4ATgEERAevu4jayQED2bNpGuyH6y1bZtqtHUb7BH99XuYLlp57IvPWH0%2FuYe%2Foz%2Fhloy0elG%2FtLncNyxOwDDxbmOW9RNUe&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UTNRDZ2R5%2F20260910%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260910T143614Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=253e242b16387b3bc1ca6c97cd82ce73220b57c87b1caeabbc499a2919538a8d 300w\" sizes=\"(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 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=IQoJb3JpZ2luX2VjEL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJHMEUCIFiTfkwcNFWDGBJ7Sfdy8WiGh6eBQxX6haJJxrisIf1cAiEAjYyM29mztLxNz%2BKN244YS8LW%2Bg6iTPfah%2F556YV3UAMqwgUIh%2F%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FARAFGgwyNzM1NzAxOTU0MzMiDM4B5KZ7jyedUDC0LCqWBbAmrrUvIhmtX7sP0zi5gAohHz3RYwUG9NHx4DPekS6DJ%2B7Nh8JM35Y2NtOs%2F3KX9Zoiu7h0AzcVHCu7LMcA1L5aEecLETUhEtMMNbpd0%2BDJDb0Xb0MI%2BPyP1AKk1dRJlVZuSswcvbbcxxHqKqKPg6CKlJKijm7LQDliYfWXuef9t3NRmOXaoKphFLUq6h0WG46fGRL2E%2B%2Bb7wpqu0CaZpBBByiuqDMmfXqHauvZWSUuY%2B%2FXX4moCLzLFgbzywsiu8JoKglloiN6cfsx7ROBrGyUTKzWbjcqlfXk87TL%2BDtRNY2R9iypXL7GUtUDn8pWNygQXeL%2BtshJIqj27wzYcQW99cGAIpO1rv4HzXGfo6tzoRbKlIzpS4B8K2kBqydSgivGCc8W3CWQVVB2XLbVCJXpo8x8iUeX170arB6DmIlq1i6ZelqZ9ye5osyhXbd%2BxKG82nAY21DMrsWbt3WPkx%2FxMkg6eYuZOUsicX%2FEXItAWQRie30DLcNXDR5bfzcrKViLOMYI1WoqT8Zx4HvQAVB0I0qqm9QD0lmzaGPwi%2FqXgCUrOBZAIWLQwOzNxCdIyvd39SxvRGdbiI7CAJpnpiagFk3JXI1WG8w9YB9If1bHXnQkS8nsPb4gF6T%2FjvrikDq6D0OIko7GbJSkTWByl285TFOoe8b%2FL%2FcNfXPNQ72CPgZCkwamR%2F21SXCPGe2JFce661Nsl3E9C%2F2l3fcz873%2B02o6KDyXcyqV3i1b%2BYDppL5bGTOXRu6D%2Fx%2BwwYy5cyo1ptPdpgtmz230N%2FmWFO%2B3zvCRpAsicfmIJjTh%2Bl92Roc9YWMHbNHux%2FibReKXYi4zq4wJsp8hL99yNmvp1Q%2BpQpNvabdkN45yFaexv%2BTkzu3HEn4PMKj4itUGOrEBNvTbmFZXdZRUtjlW8zr7G2l2MmPKJVaMoQ%2FAUe1CmCwuKPnt1Br8Vn%2FiWoDhv42Ktshbl3YQ78uvLIeeqMUKf1C8c7EjSnwQMXo%2FEVK6LHHsaK54NPl%2BeS37qeEWkw8On4nz0AEYQEpe2N4ATgEERAevu4jayQED2bNpGuyH6y1bZtqtHUb7BH99XuYLlp57IvPWH0%2FuYe%2Foz%2Fhloy0elG%2FtLncNyxOwDDxbmOW9RNUe&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UTNRDZ2R5%2F20260910%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260910T143614Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=253e242b16387b3bc1ca6c97cd82ce73220b57c87b1caeabbc499a2919538a8d 300w\" sizes=\"(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}]}}