The provided webpage content does not describe a tuition or enrichment center. It details 'Xata', a fully-managed PostgreSQL database platform for developers and businesses. Therefore, information regarding educational programs, subjects, student levels, PSLE/DSA preparation, and class formats is not available in the source material.
Xata
The provided content is for 'Xata', a database platform for PostgreSQL, not a tuition or enrichment center. No educational information was found.
