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2021-01-15 FridayLogic: Deductive Logic

Key to solving deductive logic puzzles is coming up with a strategy for identifying and discarding possibilities in a systematic fashion.

Author: Eli Feuerstein [45988-10346133]
I Love LogicNo Comments
Last: No Comments
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2021-01-15 FridaySQL: Feature and summary not shown till quiz has closed.

Author: Kim Berg Hansen [45888-10344969]

Weekly DBNo Comments
Last: No Comments
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2021-01-08 FridayLogic: Deductive Logic

Key to solving deductive logic puzzles is coming up with a strategy for identifying and discarding possibilities in a systematic fashion.

Author: Eli Feuerstein [45928-10343149]
I Love LogicNo Comments
Last: No Comments
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2021-01-01 FridayDatabase Design: Columns

Adding a column with a default value will set this value for all existing rows.

Setting a default value for an existing column has no effect on existing rows.

Author: Chris Saxon [45528-10330347]
Dynamite DB DesignNo Comments
Last: No Comments
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2021-01-01 FridaySQL: ROWNUM Pseudocolumn

ROWNUM and ORDER BY on the same level in a query will not give you a ROWNUM in the order of the ORDER BY. For that you either need ORDER BY in inline view and ROWNUM in outer query, or you can use ROW_NUMBER analytic function.

Author: Kim Berg Hansen [45848-10340191]
Select from SQLNo Comments
Last: No Comments
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2021-01-01 FridayOracle PL/SQL: Read Consistency

tbc

Author: Steven Feuerstein [45768-10336878]
PL/SQL ChallengeNo New Comments

Last: 2021-01-04 19:58:26
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2021-01-01 FridayLogic: Deductive Logic

Key to solving deductive logic puzzles is coming up with a strategy for identifying and discarding possibilities in a systematic fashion.

Author: Eli Feuerstein [45868-10340267]
I Love LogicNo Comments
Last: No Comments
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