DELETE Set

DELETE로 Set 데이터를 삭제

DELETE로 Set 데이터를 삭제합니다.

테스트 데이터 입력

Example

명령>sadd myset1 mem10 mem20 mem30 mem40 mem50
결과>5
명령>sadd myset2 10 20 30 40 50
결과>5
명령>sadd myset3 45.6 12.3 34.5 23.4 56.7
결과>5

Key로 삭제

DELETE FROM SET.MYSET1

키 하나를 지정하거나 '*'를 사용해서 여러 개 키를 삭제할 수 있습니다.

Example

명령>select * from set.myset* order by key, value;
결과>   0) key|value
  1) myset1|mem10
  2) myset1|mem20
  3) myset1|mem30
  4) myset1|mem40
  5) myset1|mem50
  6) myset2|10
  7) myset2|20
  8) myset2|30
  9) myset2|40
10) myset2|50
11) myset3|12.3
12) myset3|23.4
13) myset3|34.5
14) myset3|45.6
15) myset3|56.7
명령>delete from set.myset1;  opcode
결과> 1 keys deleted
명령>delete from set.myset*;  opcode
결과> 2 keys deleted

WHERE 조건

비교: =, <, <=, >, >=, !=, <>

Where 조건으로 키를 삭제할 수 있습니다.
삭제 명령은 키가 지워지므로 필요한 키를 다시 넣고 시작하세요.
주의할 점은 where 조건에 value를 사용할 경우에도 키가 삭제됩니다.
Value만 삭제할 경우 레디스 원래 명령을 사용하세요.

Example

명령>delete from set.* where key > 'myset2';  opcode
결과> 1 keys deleted
명령>delete from set.* where value = 'mem10';  opcode
결과> 1 keys deleted
명령>delete from set.* where value <= 20;  opcode
결과> 1 keys deleted

BETWEEN, NOT BETWEEN

Example

명령>delete from set.* where key between 'myset1' and 'myset2';  opcode
결과> 2 keys deleted
명령>delete from set.* where key not between 'myset1' and 'myset2';  opcode
결과> 1 keys deleted
데이터 입력
명령>delete from set.* where value between 20 and 40;  opcode
결과> 2 keys deleted
명령>delete from set.* where value between 30 and 'value30';  opcode
결과> 1 keys deleted

IN, NOT IN

Example

명령>delete from set.* where key in ('myset1','myset2');  opcode
결과> 2 keys deleted
데이터 입력
명령>delete from set.* where value in ('mem10',34.5);  opcode
결과> 2 keys deleted
명령>delete from set.* where value not in (30);  opcode
결과> 1 keys deleted

GLOB, NOT GLOB

*(별표), ?(물음표)
대소문자를 구분한다.

Example

명령>delete from set.* where value glob 'mem*';  opcode
결과> 1 keys deleted
명령>delete from set.* where value glob 'a*';  opcode
결과> 0 keys deleted
명령>delete from set.* where value not glob 'a*';  opcode
결과> 2 keys deleted

LIKE, NOT LIKE

%(퍼센트), _(밑줄)
대소문자를 구분하지 않는다.

Example

명령>delete from set.* where value like 'mem%';  opcode
결과> 1 keys deleted
명령>delete from set.* where value like 'A%';  opcode
결과> 0 keys deleted
명령>delete from set.* where value not like 'A%';  opcode
결과> 2 keys deleted

OPCODE

delete from set.myset1;

delete from set.myset*;

delete from set.* where key > 'myset2';

delete from set.* where value = 'mem10';

delete from set.* where value <= 20;

delete from set.* where key between 'myset1' and 'myset2';

delete from set.* where key not between 'myset1' and 'myset2';

delete from set.* where value between 20 and 40;

delete from set.* where value between 30 and 'value30';

delete from set.* where key in ('myset1','myset2');

delete from set.* where value in ('mem10',34.5);

delete from set.* where value not in (30);

delete from set.* where value glob 'mem*';

delete from set.* where value not glob 'a*';

delete from set.* where value like 'mem%';

delete from set.* where value like 'A%';

delete from set.* where value not like 'A%';

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