Method for selecting multiple versions of data in a reduced reco

Boots – shoes – and leggings

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364280, 3642807, 3642813, 3642816, 3642817, 3642821, 3642823, 3642831, 3642832, 3642833, 3642834, 3642842, 364DIG1, G06F 1202, G06F 1540, G06F 15413

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051330660

ABSTRACT:
A text document is stored as a sequence of primary records linked by a table. When an operator changes one of the records, the changed text is stored as a secondary record associated with a primary record in the table. If the operator later chooses to undo the changes, the secondary records are deleted. If he chooses to keep the changes, the secondary records are substituted for the associated primary records, and the latter are deleted.

REFERENCES:
patent: 4425618 (1984-01-01), Bishop et al.
patent: 4503488 (1985-03-01), Mason et al.
patent: 4507751 (1985-03-01), Gawlick et al.
patent: 4633384 (1986-12-01), Kusumi
patent: 4633430 (1986-12-01), Cooper
patent: 4635189 (1987-01-01), Kendall
patent: 4641274 (1987-02-01), Swank
patent: 4674043 (1987-06-01), Hernandez et al.
Crus et al., "Incremental Data Base Log Image Copy", IBM TDB vol. 25, No. 7B, Dec. 1982, pp. 3730-3732.
Dey et al., "Method for Dropping Data Sets", IBM TDB vol. 25, No. 11A, Apr. 1983, pp. 5453-5455.

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