PostgreSQL as a Schemaless Database.
PostgreSQL as a Schemaless Database.
PostgreSQL as a Schemaless Database.
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Schematic.<br />
• A schema is a fixed (although mutable<br />
over time) definition of the data.<br />
• Datab<strong>as</strong>e to schema (unfortunate term) to<br />
table to field/column/attribute.<br />
• Individual fields can be optional (NULL).<br />
• Adding new columns requires a schema<br />
change.
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