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SQL Anywhere 12.0.0 » SQL Anywhere Server - SQL Usage » Monitoring and improving database performance » Improving database performance » Performance improvement tips

 

Use appropriate data types

Data types store information about specific sets of data, including ranges of values, the operations that can be performed on those values, and how the values are stored in memory. You can improve performance by using the appropriate data type for your data. For instance, avoid assigning a data type of CHAR to values that only contain numeric data. And whenever possible, choose efficient data types over the more expensive numeric and string types. See SQL data types.