我发现了一个用于建立时间维度的示例sql,我从此链接https://gist.github.com/johngrimes/408559中获得
一切在MySQL中都是完美的,
但是,当我在netezza中尝试时,代码无法正常工作,会出现一些错误,例如“ expecting USING' or
')”或`','“等
我已尝试修改
CREATE TABLE numbers_small (number INT);
INSERT INTO numbers_small VALUES (0);
INSERT INTO numbers_small VALUES (1);
INSERT INTO numbers_small VALUES (2);
INSERT INTO numbers_small VALUES (3);
INSERT INTO numbers_small VALUES (4);
INSERT INTO numbers_small VALUES (5);
INSERT INTO numbers_small VALUES (6);
INSERT INTO numbers_small VALUES (7);
INSERT INTO numbers_small VALUES (8);
INSERT INTO numbers_small VALUES (9);
CREATE TABLE numbers (number BIGINT);
INSERT INTO numbers
SELECT thousands.number * 1000 + hundreds.number * 100 + tens.number * 10 + ones.number
FROM numbers_small thousands, numbers_small hundreds, numbers_small tens, numbers_small ones
LIMIT 1000000;
CREATE TABLE D_TIME_DAILY_TES (
TIME_ID BIGINT PRIMARY KEY,
TANGGAL DATE NOT NULL,
TAHUN INT NOT NULL,
BULAN CHAR(10) NOT NULL,
HARI CHAR(10) NOT NULL,
LAST_UPDATE timestamp NOT NULL,
constraint D_TIME_DAILY_TES UNIQUE KEY (TANGGAL)
);
INSERT INTO D_TIME_DAILY_TES (TIME_ID, TANGGAL, LAST_UPDATE)
SELECT number, DATE_ADD( '2010-01-01', INTERVAL number DAY ), CURRENT_TIMESTAMP
FROM numbers
WHERE DATE_ADD( '2010-01-01', INTERVAL number DAY ) BETWEEN '2014-01-01' AND '2014-12-31'
ORDER BY number;
UPDATE D_TIME_DAILY_TES SET
HARI = DATE_FORMAT( TANGGAL, "%W" ),
BULAN = DATE_FORMAT( TANGGAL, "%M"),
TAHUN = DATE_FORMAT( TANGGAL, "%Y" ),
LAST_UPDATE = CURRENT_TIMESTAMP;
但是它仍然不起作用:(
我该如何解决?
从语法的角度来看,您的代码有两个问题。
首先是在创建表D_TIME_DAILY_TES中。
删除TANGGAL上的唯一键约束,它将正常运行。
CREATE TABLE D_TIME_DAILY_TES
(
TIME_ID BIGINT PRIMARY KEY,
TANGGAL DATE NOT NULL,
TAHUN INT NOT NULL,
BULAN CHAR(10) NOT NULL,
HARI CHAR(10) NOT NULL,
LAST_UPDATE TIMESTAMP NOT NULL
);
第二个是在INSERT中填充相同的表。 DATE_ADD不需要向日期添加整数,并且实际上不存在。您可以改用此表格。请注意,此插入实际上将失败,因为我们仅插入三列,而您为D_TIME_DAILY_TES定义的所有列都不为NULL,因此您也需要对其进行修复。
INSERT INTO D_TIME_DAILY_TES
(
TIME_ID,
TANGGAL,
LAST_UPDATE
)
SELECT NUMBER,
'2010-01-01'::DATE + NUMBER,
CURRENT_TIMESTAMP
FROM numbers
WHERE '2010-01-01'::DATE + NUMBER BETWEEN '2014-01-01'::DATE AND '2014-12-31'::DATE
ORDER BY NUMBER;