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TDengine provides a SQL-style language, TAOS SQL, to insert or query data. This document introduces TAOS SQL and supports other common tips. To read through this document, readers should have basic understanding about SQL.
TAOS SQL is the main tool for users to write and query data into/from TDengine. TAOS SQL provides a syntax style similar to standard SQL to facilitate users to get started quickly. Strictly speaking, TAOS SQL is not and does not attempt to provide SQL standard syntax. In addition, since TDengine does not provide deletion functionality for temporal structured data, the relevant functions of data deletion is unsupported in TAO SQL.
TAOS SQL is the main tool for users to write and query data into/from TDengine. TAOS SQL provides a syntax style similar to standard SQL to facilitate users to get started quickly. Strictly speaking, TAOS SQL is not and does not attempt to provide SQL standard syntax. In addition, since TDengine does not provide deletion functionality for time-series data, the relevant functions of data deletion is unsupported in TAO SQL.
Lets take a look at the conventions used for syntax descriptions.