Progress/ESQL Not Addressed in 1989 SQL Standard
The following Progress/ESQL extensions are not included in the standard:
- Dynamic ESQL
- DATE data type
- LOGICAL data type
- DECLARE CURSOR . . . FOR READ ONLY
- DECLARE CURSOR . . . FOR UPDATE
- DROP [TABLE | INDEX | VIEW]
- ALTER TABLE
- CREATE INDEX
- Column attributes (FORMAT, LABEL, and COLUMN-LABEL)
- BEGINS predicate
- Progress functions, such as RECID, CAN-DO, and CONTAINS
- Subscripted fields, and vector (array) fields
- + string concatenation operator
- Names more than 18 characters long
- OUTER JOIN support
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