{"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=IQoJb3JpZ2luX2VjEHcaCWV1LXdlc3QtMSJGMEQCIFjkHt69l0cRsefdS2Z6hZnYphrJ04w81rLqOBqV4i9WAiAw4dyIYF0gbG6MEjYCOBCkDJmMSa1xCVJyb82tTv1qcyq4BQhAEAUaDDI3MzU3MDE5NTQzMyIMkrPOT4ICiYEdicczKpUF1dCGbq7Wx7n%2BFUYw%2B0Pb1n9myHdmxZvUsT7OxsNnR2XOhoh1z1b4uzNXJ2H5VaJxWcBBnWm%2FHMhRu8JiJL5J7vAGxUvAHe63QzDvw%2BDGfD1FTttGJUHaxl2ZBCc1q0IE03soGvswwqDUOAldt%2F38wDleHiPXamCZxG4xDZeE%2FbhyWSzJL6Y3%2FYbPkAXDbxWY7TGOihyg9WzVD59c2tZPb4XAr2D%2BePgTSTWRBloHrq9DJ3FgLEy5YnUEoOozG%2FztvJs0RLLMB55Ei0gYNaD9CWEqLK%2BL8Ts6gZObnBHOLN7eRozfjqbVqkuv%2BI4amR3YJAA3Q99vtuqV7b6sXg7fBl5qL4jYcIGEUckvkJXim5ZcVIcX12PUaB6OB%2FD7mVKLox78%2BaGvkOEDYeylM7k%2FtuhLrPFthtyXYsDG%2FFLYkQKWzNoTc431EQWo5pOx5ysU3uZ0hUXN%2BNr4Iva5%2B95hycg7i8KybP413UUZdbefXNr6NR82BLV%2FSyQloBeYxLxpzO54jjOLZAAI%2B3W9tupFWpKiGXxZEYMK3KWnf8dd5xbVJb5VyzhAGO5C14ru4PDpHLHFwLnxlXVz3sjS5p70qHhVqATMpIPavAOk6Svujc7%2FRdsANQGFiO9LEvYVvVJLltoXLyEVjGHeLwOxWV6D1yIa0c23MC1pVVcl1i6fTDtjy5J7fbvOd6YWcJjjKK0p2or78iXvc3UpLDbhx77WNl4tGGhsH2kMHoPysBlweidZH%2BFyVsPe0%2FkNYm2BLzLlrL55TCD80s97Ue01iv%2FqSjKql14vEqVecuR%2F2rUeRX46Bc%2BCKugxXiqeJRSwbomq3SEnafZ6RVn%2B2Vwr6iVKr7PKoRS6oFVm9dmYFiqIDchcfTR0OTDl%2BuHSBjqyAT55I8r3prjOZVyw9rxOk8J8UoEWGgcGwrhwqnaXbX19wQ6wLkqHEgPHme7d9hw3AU1aNZRT6SrZ0p3s8unbc6%2B203QtMR3qYtPJ9sNVmiPn68p5e%2BOkE6jR8cNzbEHta8%2BvZVI21iJBcJJvJbotuhlC97%2BsF9NcUL%2FndGFE%2BDzLvJsGRybEYcgxufw73ic0dbiLId%2F1vuW0Q%2BX%2BtVzvSuCYk04WqRNs1CgqJgc3Tj%2F%2FLt8%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U6JWVXI3P%2F20260716%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260716T071216Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=21a8175a39fc3b00101a58032d8effcc3da5f8001b63c89f9147cfb2e46c8e53 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=IQoJb3JpZ2luX2VjEHcaCWV1LXdlc3QtMSJGMEQCIFjkHt69l0cRsefdS2Z6hZnYphrJ04w81rLqOBqV4i9WAiAw4dyIYF0gbG6MEjYCOBCkDJmMSa1xCVJyb82tTv1qcyq4BQhAEAUaDDI3MzU3MDE5NTQzMyIMkrPOT4ICiYEdicczKpUF1dCGbq7Wx7n%2BFUYw%2B0Pb1n9myHdmxZvUsT7OxsNnR2XOhoh1z1b4uzNXJ2H5VaJxWcBBnWm%2FHMhRu8JiJL5J7vAGxUvAHe63QzDvw%2BDGfD1FTttGJUHaxl2ZBCc1q0IE03soGvswwqDUOAldt%2F38wDleHiPXamCZxG4xDZeE%2FbhyWSzJL6Y3%2FYbPkAXDbxWY7TGOihyg9WzVD59c2tZPb4XAr2D%2BePgTSTWRBloHrq9DJ3FgLEy5YnUEoOozG%2FztvJs0RLLMB55Ei0gYNaD9CWEqLK%2BL8Ts6gZObnBHOLN7eRozfjqbVqkuv%2BI4amR3YJAA3Q99vtuqV7b6sXg7fBl5qL4jYcIGEUckvkJXim5ZcVIcX12PUaB6OB%2FD7mVKLox78%2BaGvkOEDYeylM7k%2FtuhLrPFthtyXYsDG%2FFLYkQKWzNoTc431EQWo5pOx5ysU3uZ0hUXN%2BNr4Iva5%2B95hycg7i8KybP413UUZdbefXNr6NR82BLV%2FSyQloBeYxLxpzO54jjOLZAAI%2B3W9tupFWpKiGXxZEYMK3KWnf8dd5xbVJb5VyzhAGO5C14ru4PDpHLHFwLnxlXVz3sjS5p70qHhVqATMpIPavAOk6Svujc7%2FRdsANQGFiO9LEvYVvVJLltoXLyEVjGHeLwOxWV6D1yIa0c23MC1pVVcl1i6fTDtjy5J7fbvOd6YWcJjjKK0p2or78iXvc3UpLDbhx77WNl4tGGhsH2kMHoPysBlweidZH%2BFyVsPe0%2FkNYm2BLzLlrL55TCD80s97Ue01iv%2FqSjKql14vEqVecuR%2F2rUeRX46Bc%2BCKugxXiqeJRSwbomq3SEnafZ6RVn%2B2Vwr6iVKr7PKoRS6oFVm9dmYFiqIDchcfTR0OTDl%2BuHSBjqyAT55I8r3prjOZVyw9rxOk8J8UoEWGgcGwrhwqnaXbX19wQ6wLkqHEgPHme7d9hw3AU1aNZRT6SrZ0p3s8unbc6%2B203QtMR3qYtPJ9sNVmiPn68p5e%2BOkE6jR8cNzbEHta8%2BvZVI21iJBcJJvJbotuhlC97%2BsF9NcUL%2FndGFE%2BDzLvJsGRybEYcgxufw73ic0dbiLId%2F1vuW0Q%2BX%2BtVzvSuCYk04WqRNs1CgqJgc3Tj%2F%2FLt8%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47U6JWVXI3P%2F20260716%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20260716T071216Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=21a8175a39fc3b00101a58032d8effcc3da5f8001b63c89f9147cfb2e46c8e53 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}]}}