Why is sql-92 syntax better than ansi-89 syntax?

One can assume that most RDBMS engines transform the syntax into an internal representation before optimizing or executing the query, so the human-readable syntax makes no difference. I also try to evangelize the SQL-92 syntax.
Thereof, which is better SQL 89 or SQL 92?
According to "SQL Performance Tuning" by Peter Gulutzan and Trudy Pelzer, of the six or eight RDBMS brands they tested, there was no difference in optimization or performance of SQL-89 versus SQL-92 style joins.
In addition, how to use ANSI SQL in Oracle SQL? In Oracle SQL you use the plus sign (+) to tell the SQL Engine that it's an outer join. In SQL Server you should use the asterisk (*) operator to do the same. In Ansi SQL you tell the query to LEFT OUTER JOIN or RIGHT OUTER JOIN one table to another.
Besides, which is more complex SQL or ANSI SQL?
As you know that ANSI SQL syntax is little difficult to follow initially. But once every body used to it, it is quite easy. Though it is considered as more complex than non-ANSI SQL standard.
In fact, what are the advantages of SQL-92 join notation?
One primary advantage of the SQL-92 join notation is that there is a standard and relatively sane way of writing LEFT OUTER JOIN and variants. Each DBMS had its own variant syntax (usually bad; actually, I think, without exception the notations were bad) and often with slightly different semantics.

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How to set ansi nulls and ansi warnings?

SET ANSI_NULLS ON; SET ANSI_WARNINGS ON; SELECT * FROM customers ... the error is issued. Works for me combining two MS SQL servers. This is almost a duplicate of this question. Note that the error message returned in that case was: Heterogeneous queries require the ANSI_NULLS and ANSI_WARNINGS options to be set for the connection.

Is there an ansi dvorak layout for ansi?

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