{"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=IQoJb3JpZ2luX2VjEMn%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJIMEYCIQDfDjXxSMyE%2Bcl0WZQ5ZIC1tOhEXqWvOxrK%2F%2BDDlSFkAwIhAKP4QQtMfFH1ThAShTA1s5oHiBL73YOKTr50TBN7SKiMKsIFCJL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQBRoMMjczNTcwMTk1NDMzIgwuM%2Bmr9QQlyZ6Cic8qlgXFyHGCq%2F4%2FtsYAgIlyyO9wFJoWGXPpfLRHNmqNK%2F2HJtCgu2aje0gZDxlB%2F8n00r4r68UNflNCY83MKXIMMBlH6bbCw%2Ba4M5yKypMCruLTqNxfY0541w3W4fZehyQh65dgvAhkLQFmS2u4cGd89B7ak4fj2lDTc6VsCfbqC1UNtS%2FqyaWXkhaToDwrt2cspkaTqBki6BAutzx0hpCjbmM0DmY98n6ZswhsW7sML76Cvq4EC0E%2B3rlI%2BgxJjvqPZNo4Lz3pqn%2F0kJu1iU2DtyyzWeIeJN4gKQis8wsjavXyH8rnZAH5rmYpNo2%2BTNAxAs7dX3Z7nKYNqi3%2FHzxTUyKLFjw3YveLKrVjTfiyp9zDizv8qGaqBmEuQKmmI1hT%2BcTJ7AtWNvEcKPvVsEG%2BQf1Htnpgp1dPBt6dM1cdn%2F%2FVPBjyXoaDmHU1gSNM0Ru5paKHf1QTBvdywefd1rTKB8bOiMgoy4puJh4S%2F1eu5DHBG%2FAM8EnO%2BjnYh3BAVovgJZLkr0VgljBo5Qk3u78AD8ZvyOF9TiZrrHD4bCcbr%2BfDA9ryWwCESNOYtrDKGeqalA%2FsXEC2hyPYe8VcBgjcfJd3%2FmJb%2FslZPVDCI8V6RKZzFhglEyuGAUsQQxG7GOT18UoVVl5FwZVaOKHTrkbDx3tJQg2JmFs7O26GPwr2zK9BA181vpn34q%2B5owZ%2BuUnrvEPzomaHASdZXibDfzDtvFY%2Bhu%2FX0tlUha7q6nGTkr5D6WlQ%2FSb7Z%2FZgfIkqvW80fmZ8Zw95%2BRq6JJ%2FSFPMwoghlY9AwGAvXykcQSUMiN%2FyLtTw1I1uzEb9gy%2Bu2IUonulehQ5ZUZCzzlMoeeWIvNEivYElRHrrelfLcNVeSSiIVR6M4c8w%2BCTC05pzUBjqwAQiEwZEHYOfGecwHdAj0GGJq356y8MwEUCkzP6eazyeYH%2Bj%2BrEPhn5QlaFmdLa%2Bgm8IBrEnAe40bmPAzGMK1U1DJOWHOXE2%2BfAk0%2Bt74IfFUUFzSuktkPjo3OptNhsubi4LHVeuziKKFsGRJWOSRWB1khioIJZvGIZkFQCPvJd60wrevHjmS8ILiFca7l0oG9lGsCmfcpDd3j6mgEtUGGiCg2%2Fxnw9bvRrIAcdxzbChd&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U3JIVYEDW%2F20260820%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260820T171108Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9987f9ee4b9d9e88536e4692975c184deec5b0892c46ba539d5e29b7d8665cdc 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=IQoJb3JpZ2luX2VjEMn%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJIMEYCIQDfDjXxSMyE%2Bcl0WZQ5ZIC1tOhEXqWvOxrK%2F%2BDDlSFkAwIhAKP4QQtMfFH1ThAShTA1s5oHiBL73YOKTr50TBN7SKiMKsIFCJL%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQBRoMMjczNTcwMTk1NDMzIgwuM%2Bmr9QQlyZ6Cic8qlgXFyHGCq%2F4%2FtsYAgIlyyO9wFJoWGXPpfLRHNmqNK%2F2HJtCgu2aje0gZDxlB%2F8n00r4r68UNflNCY83MKXIMMBlH6bbCw%2Ba4M5yKypMCruLTqNxfY0541w3W4fZehyQh65dgvAhkLQFmS2u4cGd89B7ak4fj2lDTc6VsCfbqC1UNtS%2FqyaWXkhaToDwrt2cspkaTqBki6BAutzx0hpCjbmM0DmY98n6ZswhsW7sML76Cvq4EC0E%2B3rlI%2BgxJjvqPZNo4Lz3pqn%2F0kJu1iU2DtyyzWeIeJN4gKQis8wsjavXyH8rnZAH5rmYpNo2%2BTNAxAs7dX3Z7nKYNqi3%2FHzxTUyKLFjw3YveLKrVjTfiyp9zDizv8qGaqBmEuQKmmI1hT%2BcTJ7AtWNvEcKPvVsEG%2BQf1Htnpgp1dPBt6dM1cdn%2F%2FVPBjyXoaDmHU1gSNM0Ru5paKHf1QTBvdywefd1rTKB8bOiMgoy4puJh4S%2F1eu5DHBG%2FAM8EnO%2BjnYh3BAVovgJZLkr0VgljBo5Qk3u78AD8ZvyOF9TiZrrHD4bCcbr%2BfDA9ryWwCESNOYtrDKGeqalA%2FsXEC2hyPYe8VcBgjcfJd3%2FmJb%2FslZPVDCI8V6RKZzFhglEyuGAUsQQxG7GOT18UoVVl5FwZVaOKHTrkbDx3tJQg2JmFs7O26GPwr2zK9BA181vpn34q%2B5owZ%2BuUnrvEPzomaHASdZXibDfzDtvFY%2Bhu%2FX0tlUha7q6nGTkr5D6WlQ%2FSb7Z%2FZgfIkqvW80fmZ8Zw95%2BRq6JJ%2FSFPMwoghlY9AwGAvXykcQSUMiN%2FyLtTw1I1uzEb9gy%2Bu2IUonulehQ5ZUZCzzlMoeeWIvNEivYElRHrrelfLcNVeSSiIVR6M4c8w%2BCTC05pzUBjqwAQiEwZEHYOfGecwHdAj0GGJq356y8MwEUCkzP6eazyeYH%2Bj%2BrEPhn5QlaFmdLa%2Bgm8IBrEnAe40bmPAzGMK1U1DJOWHOXE2%2BfAk0%2Bt74IfFUUFzSuktkPjo3OptNhsubi4LHVeuziKKFsGRJWOSRWB1khioIJZvGIZkFQCPvJd60wrevHjmS8ILiFca7l0oG9lGsCmfcpDd3j6mgEtUGGiCg2%2Fxnw9bvRrIAcdxzbChd&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U3JIVYEDW%2F20260820%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260820T171108Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=9987f9ee4b9d9e88536e4692975c184deec5b0892c46ba539d5e29b7d8665cdc 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}]}}