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sql - NUMBER(12,0)'s meaning in "S_NO NUMBER(12,0) NOT NULL ...

stackoverflow.com › questions
Jan 15, 2016 · NUMBER(12,0) indicates a numeric data type with precision 12 and scale 0 . A related SO post explains precision and scale further:.
Is there a difference between "not null" and "not null enable"?
Why to use "not null primary key" in TSQL? - Stack Overflow
MySQL - Are "NOT NULL" constraints needed for primary keys?
Do we need to specify "not null" for primary key? Oracle/SQL [closed]
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Jan 30, 2021 · I believe that the primary key constraint enforces the not null constraint. You can look at the following Fiddle. I'm not sure what it is ...

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asktom.oracle.com › ords
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Missing: q= stackoverflow. 34804494/ number12- 0s- key&sca_esv= 9c0a2ce53a51d660&filter=

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Not Null Constraints on Primary Key columns - Oracle Forums

forums.oracle.com › ords › apexds › post
Jul 5, 2007 · I can anticipate a reply that using both lets you disable the primary key constraint and still prevent null columns, although I fail to see how ...
Missing: q= https:// stackoverflow. 34804494/ number12- 0s- meaning- s- no- 0- key&sca_esv= 9c0a2ce53a51d660&filter= 0

Current state of INTEGER vs NUMBER in Oracle

dba.stackexchange.com › questions › cur...
May 10, 2018 · So I am planning on using NUMBER(38,0) like I always have, lots of legacy databases and tables I am importing data from actually store this ID ...
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