[Progress Communities] [Progress OpenEdge ABL] Forum Post: RE: SQL89 and server-side joins

[gus bjorklund]

The 4GL compiler also compiler the SQL-89 statements. That is why you can mix 4GL and SQL-89. The SQL statements are compiler into r-code and then executed in the usual way by the 4GL runtime. A few of the r-code operators are used only by SQL-89.=

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