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Table 1. What's New in IBM Informix Guide to SQL: Syntax for Version 11.70.xC8 the target database. Creating foreign-key constraints in NOVALIDATE modes.
Informix. Version 11.50. IBM Informix Guide to SQL: Syntax. SC27-3611-02 .. Multiple-Column Constraint Format . DROP CONSTRAINT Clause .
Use the ADD CONSTRAINT clause to specify a primary key, foreign key, referential, system catalog table, see the IBM Informix Guide to SQL: Reference .
28 Jan 1993 Informix Guide to SQL. Syntax. Version 7.2. April 1996. Part No. 000- You can now create not null constraints with the CREATE TABLE and.
Informix. Version 12.10. IBM Informix Guide to SQL: Syntax. SC27-4523-00 .. Single-Column Constraint Format . DROP CONSTRAINT Clause .
Guide to SQL. Syntax. IBM Informix Extended Parallel Server, Version 8.4. IBM Informix Dynamic ALTER TABLE to add or drop a foreign key constraint. ?.
In the Informix Guide to SQL: Tutorial, see the discussion of data-integrity constraints and the discussion of the ON DELETE CASCADE clause in Chapter 4.
The first constraint on any column is the one that is implicit in the data type for .. For more information, see Chapter 3 of the Informix Guide to SQL: Reference.
These topics contain the reference information for the system catalog tables, data types, and environment variables of the IBM® Informix® dialect of the SQL language, as implemented in IBM Informix. These topics also include information about the stores_demo, sales_demo, and

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February 2018