回答編集履歴
1
DROP TABLEが抜けてました。
answer
CHANGED
|
@@ -3,16 +3,17 @@
|
|
|
3
3
|
時刻テーブルを作成してからUPDATE/INSERTを行ったらいかがでしょうか。
|
|
4
4
|
|
|
5
5
|
【例】
|
|
6
|
-
CREATE TABLE TableB ( seconds 型 );
|
|
6
|
+
CREATE TABLE "TableB" ( "seconds" 型 );
|
|
7
|
-
INSERT INTO TableB ( seconds ) VALUES ( extract(epoch from now()) );
|
|
7
|
+
INSERT INTO "TableB" ( "seconds" ) VALUES ( extract(epoch from now()) );
|
|
8
|
-
UPDATE "TableA" SET "unixtime" = (SELECT seconds FROM TableB ) WHERE "id" = 100;
|
|
8
|
+
UPDATE "TableA" SET "unixtime" = ( SELECT "seconds" FROM "TableB" ) WHERE "id" = 100;
|
|
9
|
-
UPDATE "TableA" SET "unixtime" = (SELECT seconds FROM TableB ) WHERE "id" = 199;
|
|
9
|
+
UPDATE "TableA" SET "unixtime" = ( SELECT "seconds" FROM "TableB" ) WHERE "id" = 199;
|
|
10
|
-
UPDATE "TableA" SET "unixtime" = (SELECT seconds FROM TableB ) WHERE "id" = 300;
|
|
10
|
+
UPDATE "TableA" SET "unixtime" = ( SELECT "seconds" FROM "TableB" ) WHERE "id" = 300;
|
|
11
|
-
UPDATE "TableA" SET "unixtime" = (SELECT seconds FROM TableB ) WHERE "id" = 301;
|
|
11
|
+
UPDATE "TableA" SET "unixtime" = ( SELECT "seconds" FROM "TableB" ) WHERE "id" = 301;
|
|
12
|
-
UPDATE "TableA" SET "unixtime" = (SELECT seconds FROM TableB ) WHERE "id" = 310;
|
|
12
|
+
UPDATE "TableA" SET "unixtime" = ( SELECT "seconds" FROM "TableB" ) WHERE "id" = 310;
|
|
13
|
-
INSERT INTO "TableA" ("unixtime") SELECT seconds FROM TableB;
|
|
13
|
+
INSERT INTO "TableA" ("unixtime") SELECT "seconds" FROM "TableB";
|
|
14
|
-
INSERT INTO "TableA" ("unixtime") SELECT seconds FROM TableB;
|
|
14
|
+
INSERT INTO "TableA" ("unixtime") SELECT "seconds" FROM "TableB";
|
|
15
|
-
INSERT INTO "TableA" ("unixtime") SELECT seconds FROM TableB;
|
|
15
|
+
INSERT INTO "TableA" ("unixtime") SELECT "seconds" FROM "TableB";
|
|
16
|
+
DROP TABLE "TableB";
|
|
16
17
|
|
|
17
18
|
ごめんなさい、今手元に環境が無くて、
|
|
18
19
|
想像で回答させて頂いておりますので、微調整が必要かもしれません。
|