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Free online SQL quizzes on Oracle Dev Gym

Chris Saxon
7 minute read

How to modify constraints in Oracle Database

Chris Saxon
10 minute read

Announcing the General Availability of the SQL:2023 Standard

Gerald Venzl
2 minute read

Free developer resources to help you get started with Oracle Database

Chris Saxon
4 minute read

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How to get the difference between datetimes in days, hours, minutes, ...

Chris Saxon 10 minute read

How to write an anonymous PL/SQL function and use it in your SQL ...

Gerald Venzl 1 minute read

How to get the cumulative running total of rows with SQL

Chris Saxon 7 minute read

Announcing the winners of the 2022 Oracle Dev Gym Championships

Chris Saxon 5 minute read

How to convert UNIX epochs to datetime values in Oracle Database (and ...

Chris Saxon 5 minute read

Announcing the 2022 Oracle Dev Gym Championships

Chris Saxon 3 minute read

Percentage calculations using SQL Window Functions

Gerald Venzl 4 minute read

Avoid writing SQL inside loops for fast database code #JoelKallmanDay

Chris Saxon 4 minute read

How to group rows into 5, 10 or 15-minute intervals with Oracle SQL

Chris Saxon 9 minute read

New quizzes page, quiz author, and daily featured quizzes on Oracle ...

Chris Saxon 4 minute read

Announcing the winners of the 2021 Oracle Dev Gym Championships

Chris Saxon 9 minute read

How to write SELECT * EXCEPT queries in Oracle Database

Chris Saxon 22 minute read

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