mysql小技巧_1

show PROCESSLIST ;
SELECT now();
SELECT DATE_SUB(CURDATE(), INTERVAL 30 DAY);


CREATE DATABASE qx_test;
CREATE TABLE IF NOT EXISTS qx_test.test
    (
          title VARCHAR(64) NOT NULL PRIMARY KEY
        , length INT(8) NOT NULL
        , video VARCHAR(128) NULL
        , link VARCHAR(256) NOT NULL
        , content TEXT NULL
    );
DROP TABLE IF EXISTS qx_test.test;


-- 临时表1 --
CREATE TEMPORARY TABLE temp_news1
(keyword VARCHAR(8),field VARCHAR(8))
;

INSERT INTO temp_news1 (keyword,field)
SELECT *
FROM db1.table1
;

SELECT *
FROM temp_news
;

-- 临时表2 --
create TEMPORARY TABLE temp_news2 AS
SELECT keyword,field
    FROM db2.table2
;