{"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=IQoJb3JpZ2luX2VjEM7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJIMEYCIQDez17%2BHJOp52UmKqXd1moelt3YA7c3oNvcCaXHiqA4TgIhAMUOwq1upVmARSQk8Vdogh12AAR9RcjLlCDhwkZucLYZKsEFCJf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQBRoMMjczNTcwMTk1NDMzIgw4FDURFplRZSVv9lsqlQUjpgX3ckuDQiNf8%2FQNiCRtHVn6IXxSE0%2Fl7KgMLhf%2Fg%2Fp1A5Nu0jPPAMFxzkJ6xT6T%2FWD5c47nnq5afMmqmSHeSKJ%2BS8Oz8%2BJUoSLb7bJcoH4R1s4fT805xB8QcdglEzljD4rEynfgIIBN2qUwtMi0qVz56vSzGCxUdKdoRvfyPdWg7VxOLY6BbjRFaRfONEZwDgtdaWgqxA3B9uu17PtDQGdpKhytOhH7PHgEldYEp1ovUuPyKnmYrYmdcgaCyRP9dm7qP%2BEeLFwyYNREBj0Ae3DHOk%2FYt7Jf0s%2BAX6d0d6C6A8aZk%2Br%2F8eGeLqykHc0QGLpFAxZBD6ZcE2Q0ayXloHf%2FjgB92em%2B7NRd7b2rl55j6tHTxXRCo932lA%2B1mlBRQ93upklPpwTfOSiS6xm1D7jsXsRZ38pNSv0pWHhGJOQf6YVbjHNau%2B%2B%2FF%2FG7s81axqiYnzwyTamL9mK%2FA1bfCmvbzIEisl2xFmMRt2SJ1AMhsL4T%2BJplzTc2b9z1tx7Yu85V9EUQp9n3RH9Ntzb3Uzf2ajtP85s7oI5O5zUxqm2czdpsU6K5ksrnvdgADd524BSqVv1S6j%2BtZqDcRNhhVV8GeFkYLWWMbKvWsNczyWJxsNxhP2nj%2F%2F2D4tJt4mlZiFkA0TqC8vga2VIQSyvNp1hfde8%2Fzyh7xEKp4kGe4vfIa9aP5pRl0U294mAeJYqjGDcW6ytH2LzRAD4miWdE8F4cGA3zQRZOvQFhjNkog694%2BHuV6o9jLIlJ7%2FvUcaBRW5fMBol7xJ6X%2FM5BL%2FvL5JKp3FBKIEC4B%2B9KIhgXGTOaubZUXMhRzp%2FwElLpu9ZQjfsZekJz2H96sXn0b8rzl3Rz78CuaHEZGr1iBYsoMpAYwd%2B9MOKi79YGOrAB3SpZB%2FJTeC26JwOZV1S7FDj9dZ91ZrSS06SdPnYJ459MoQ%2Bvyo9OCFL8Hyj7Xw0MZ6X%2B11AIGwwxODh0E51WqofaUoenb%2BOPr38fuMBT71ZUd9T0o7vbaIwhRA9nDEIDlZZFkL%2FSiEF8DVaWmPHJTnVsdQBU5WYGAAA0My4zT63z%2BR8OdbYkxtio0%2BU6PpD0ii9vTpyKfwB4i7%2F0MWS%2Fn2fPZm1WGHHtSAQnQyQW1Z4%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UV755SZRR%2F20261023%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20261023T215253Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=164a0750396bd769899494eee1812772ff53747d89cc8959e915a4a875b9a950 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=IQoJb3JpZ2luX2VjEM7%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEaCWV1LXdlc3QtMSJIMEYCIQDez17%2BHJOp52UmKqXd1moelt3YA7c3oNvcCaXHiqA4TgIhAMUOwq1upVmARSQk8Vdogh12AAR9RcjLlCDhwkZucLYZKsEFCJf%2F%2F%2F%2F%2F%2F%2F%2F%2F%2FwEQBRoMMjczNTcwMTk1NDMzIgw4FDURFplRZSVv9lsqlQUjpgX3ckuDQiNf8%2FQNiCRtHVn6IXxSE0%2Fl7KgMLhf%2Fg%2Fp1A5Nu0jPPAMFxzkJ6xT6T%2FWD5c47nnq5afMmqmSHeSKJ%2BS8Oz8%2BJUoSLb7bJcoH4R1s4fT805xB8QcdglEzljD4rEynfgIIBN2qUwtMi0qVz56vSzGCxUdKdoRvfyPdWg7VxOLY6BbjRFaRfONEZwDgtdaWgqxA3B9uu17PtDQGdpKhytOhH7PHgEldYEp1ovUuPyKnmYrYmdcgaCyRP9dm7qP%2BEeLFwyYNREBj0Ae3DHOk%2FYt7Jf0s%2BAX6d0d6C6A8aZk%2Br%2F8eGeLqykHc0QGLpFAxZBD6ZcE2Q0ayXloHf%2FjgB92em%2B7NRd7b2rl55j6tHTxXRCo932lA%2B1mlBRQ93upklPpwTfOSiS6xm1D7jsXsRZ38pNSv0pWHhGJOQf6YVbjHNau%2B%2B%2FF%2FG7s81axqiYnzwyTamL9mK%2FA1bfCmvbzIEisl2xFmMRt2SJ1AMhsL4T%2BJplzTc2b9z1tx7Yu85V9EUQp9n3RH9Ntzb3Uzf2ajtP85s7oI5O5zUxqm2czdpsU6K5ksrnvdgADd524BSqVv1S6j%2BtZqDcRNhhVV8GeFkYLWWMbKvWsNczyWJxsNxhP2nj%2F%2F2D4tJt4mlZiFkA0TqC8vga2VIQSyvNp1hfde8%2Fzyh7xEKp4kGe4vfIa9aP5pRl0U294mAeJYqjGDcW6ytH2LzRAD4miWdE8F4cGA3zQRZOvQFhjNkog694%2BHuV6o9jLIlJ7%2FvUcaBRW5fMBol7xJ6X%2FM5BL%2FvL5JKp3FBKIEC4B%2B9KIhgXGTOaubZUXMhRzp%2FwElLpu9ZQjfsZekJz2H96sXn0b8rzl3Rz78CuaHEZGr1iBYsoMpAYwd%2B9MOKi79YGOrAB3SpZB%2FJTeC26JwOZV1S7FDj9dZ91ZrSS06SdPnYJ459MoQ%2Bvyo9OCFL8Hyj7Xw0MZ6X%2B11AIGwwxODh0E51WqofaUoenb%2BOPr38fuMBT71ZUd9T0o7vbaIwhRA9nDEIDlZZFkL%2FSiEF8DVaWmPHJTnVsdQBU5WYGAAA0My4zT63z%2BR8OdbYkxtio0%2BU6PpD0ii9vTpyKfwB4i7%2F0MWS%2Fn2fPZm1WGHHtSAQnQyQW1Z4%3D&amp;X-Amz-Algorithm=AWS4-HMAC-SHA256&amp;X-Amz-Credential=ASIAT7MQN47UV755SZRR%2F20261023%2Feu-west-1%2Fs3%2Faws4_request&amp;X-Amz-Date=20261023T215253Z&amp;X-Amz-SignedHeaders=host&amp;X-Amz-Expires=900&amp;X-Amz-Signature=164a0750396bd769899494eee1812772ff53747d89cc8959e915a4a875b9a950 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}]}}