3.2
1971 DTBG (Database Task Group) , . 1975 CODASYL (Conference of Data System Languages), .
. : . . . , <, , , >, , . , <, > . . 12. - , . , <, >, , . . . , , . () . - , ( ) . . 1. . , - -. . -. , . . . .
.1.
, , .
.
- .
- .
- .
- .
- .
: |
.
3.2 1971 DTBG (Database Task Group) , . 1975 CODASYL (Conference of Data System Languages), . . : . . . , <, , , >, , . , <, > . . 12. - , . , <, >, , . . . , , . () . - , ( ) . . 1. . , - -. . -. , . . . . .1. , , . .
: 2018-10-18; !; : 178 | : : , , . |