Oracle SQL Tutorial 12 - Intro to Constraints

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Caleb u r the grtst, I wish if I Cud hit all the like btns ov all Ur tutorials, I wish if u. Cud make orcl forms tut too..Tnx alts 4 suport

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Caleb does the main oracle (the paid for version) still use sql developer? and does it still work in the same way you are showing in the videos. Basically will i be able to learn with the free oracle 11g and then be comfortable using the main oracle for databases? By the way thanks for the videos very helpful

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Nearly everything (if not everything) I teach in these videos apply to the paid version.

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Are constraints optional?

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They are by default if you make a key, such as a foreign key constraint. So if you don't want constraints, don't use keys (probably a bad idea 🙂)

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Not gonna lie ! I saw Ron Weasley in the thumbnail !

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2:00 hahahahaha omg :'D
Thank you for the video \(^o^)

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wait a minute Caleb, i thought Unique Key can be either a NULL or NOT NULL. verify

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