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Remote Filters in Xbase++ with PostgreSQL ISAM Emulation
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V2.0 Remote Filters in Xbase++ with PostgreSQL ISAM Emulation
Steffen F. Pirsig
3 min read
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2,647
Xbase++ developers often use ISAM (Indexed Sequential Access Method) for data management because of its efficiency and straightforward approach to handling database operations. Moving to PostgreSQL, a robust SQL database, offers enhanced capabilities but requires an understanding of new...
Using SQL Constraints for Data Integrity in Xbase++ with PostgreSQL
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V2.0 Using SQL Constraints for Data Integrity in Xbase++ with PostgreSQL
Jeffrey Wulf
3 min read
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3,615
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1
Background Xbase++ allows seamless integration with SQL backends like PostgreSQL using the DacSession() object. When working with SQL databases, enforcing data integrity through application logic alone is not always sufficient. Native SQL constraints (such as CHECK, UNIQUE, or FOREIGN KEY)...
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