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SQLSelect
SQLSelect[conn, table]
extracts data from a table in an SQL connection.
SQLSelect[conn, table, cols]
extracts data from particular columns.
SQLSelect[conn, table, cols, cond]
only extracts data that matches cond.
范例打开所有单元
基本范例 (1)
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If you find that the examples in this section do not work as shown, you may need to install or restore the example database with the 
package, as described in Using the Example Databases.
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Join data from multiple tables:
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Select data matching a condition:
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Select data matching a pattern:
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