Database compressing and decompressing method
A compression method and database technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems of code table occupation, large space, increased processing overhead, etc., to achieve reduced processing overhead, high efficiency, and compression efficiency Improved effect
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 like figure 1 Shown, database compression method of the present invention comprises:
 Step 10) set up the compression method set of each attribute type of the database tuple, and number each compression method;
 Step 11) According to the attribute type and value of the database tuple, select the compression method from the compression method set of the attribute type, and store the numbering of the compression method in the head of the compressed tuple;
 Step 12) Using the compression method corresponding to the number of the compression method stored in the header of the compressed tuple to compress the attribute value of the database tuple, and storing the compressed attribute value in the compressed tuple.
 The technical scheme of the database compression method of the present invention will be described in detail below by taking the information database of women of childbearing age of a provincial family planning committee as an exam...
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