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Third Step at defining type SID in SQL
CREATE DOMAIN SID AS VARCHAR(5)
CHECK ( VALUE IS NOT NULL AND
SUBSTRING(VALUE FROM 1 FOR 1) = 'S' AND
CAST('+'||SUBSTRING(VALUE FROM 2) AS INTEGER) >= 0 );
Explanation:
Using Savepoints The scope of the savepoint is a transaction in which it is defined. The Savepoints defined in the major transaction are not related to the savepoints defined
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Hi,am developing a library system and relating all the table is somehow complex,could you kindly assist me
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