How to find if the DEFAULT VALUE of the COLUMN is stored as metadata?

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• How to set the default value of a column?

  Hello
  While creating a table a lack that certain field value is set to a default value, like:
  
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  (a number;
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  In this table, I want to put a value to a certain default value, as in the case where a value is not entered then a field will be automatically filled with the default value. How to do this?

  Very simple:

  create table t2
  (a number default 10,
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  You can also set a default value and keep it as NOT NULL, to prevent it from being updated with NULL value later.

  create table t2
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• How to find out the ASCII values for the Spanish character

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  I had an obligation to maintain the Spanish character and must also always records based on the Spanish character.
  
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  To expand on what I said in my first post, you want to do something in this direction:

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  THENAM S ASCII(SUBSTR(THENAME,LEVEL))
  ------ - ----------------------------
  Suresh S                           83
  Suresh u                          117
  Suresh r                          114
  Suresh e                          101
  Suresh s                          115
  Suresh h                          104
  
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  John.