SELECT Statements

Features

The following features are supported for the SELECT statement:

1. Using * to select all columns is supported.

  SELECT * FROM Lead

2. Column aliases are supported.

  SELECT FullName AS MY_FullName FROM Lead

3. Quoted column names are supported.

  SELECT [FullName] FROM Lead

4. The =, <>, >, <, >=, <= are supported in the WHERE Clause.

  SELECT * FROM Lead WHERE FirstName <> 'John Smith';

5. ORDER BY and LIMIT are supported

  SELECT * FROM Lead ORDER BY FirstName LIMIT 10

6. Parameterized SELECT statements are supported.

  SELECT * FROM Lead WHERE FirstName = @param

Pseudo-Columns

The RSSBus JDBC Driver for MSCRM offers some input-only fields in the SELECT Statements. These fields, called pseudo-columns, do not appear as regular columns in the results, yet may be specified as part of the WHERE clause. Pseudo-columns allow access to additional features from MSCRM.

  SELECT * FROM Lead WHERE ODataFilter = startswith(FullName, 'C')

Limitations

The SQL Syntax for the SELECT statement has the following limitations in this version (when compared to tools like SQL Server):

• Table joins are not supported, so a query can only reference a single table in the FROM clause.
• GROUP BY, HAVING clauses and nested statements are not supported.
• Scalar or aggregation functions are not supported.