Vertica数据库操作

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Vertica数据库操作

来源: 作者: 时间:2016-01-23 11:15 【

删除主键(Vertica数据库的主键并不是唯一的):SELECT ANALYZE_CONSTRAINTS( fb_s c_log );找到key名,再:ALTER TABLE fb_s c_log DROP CONSTRAINT C_PRIMARY;SELECT ANALYZE_CON

删除主键(Vertica的主键值并不是唯一的):
SELECT ANALYZE_CONSTRAINTS('fb_s.c_log');

找到key名,再:

ALTER TABLE fb_s.c_log DROP CONSTRAINT C_PRIMARY;

SELECT ANALYZE_CONSTRAINTS('fb_s.user_info');

ALTER TABLE fb_s.user_info DROP CONSTRAINT C_PRIMARY;

建用户和SCHEMA :

CREATE user fb_s_sql IDENTIFIED BY 'password';
CREATE SCHEMA fb_s_sql;

给权限:
GRANT ALL ON SCHEMA fb_s_sql TO fb_s_sql;
GRANT ALL ON SCHEMA fb_s TO fb_s_sql;

GRANT ALL ON TABLE fb_s_sql.sqllog TO fb_s_sql;

建表:

CREATE TABLE fb_s.c_log (
uid int NOT NULL,
cash int,
gold int,
level int,
rtime datetime,
tid varchar(20),
act varchar(50),
item varchar(500),
value int,
value2 int,
time datetime
);

CREATE TABLE fb_s.new_c_log (
uid integer PRIMARY KEY NOT NULL,
cash integer,
gold integer,
level integer,
rtime datetime,
tid varchar(20),
act varchar(50),
item varchar(500),
value integer,
value2 integer,
time datetime NOT NULL
)
PARTITION BY EXTRACT(year FROM time)*100 + EXTRACT(month FROM time);

后一个是按time字段分区

增加及修改字段:

ALTER TABLE fb_s.c_logADD COLUMN value2 integer default 0;
ALTER TABLE fb_s.c_log ALTER COLUMN duration SET DEFAULT 0;
ALTER TABLE fb_s.c_log ALTER COLUMN mesg SET DEFAULT '';


两表之间导数据:
insert into fb_s.c_log (uid,cash,gold,level,rtime,tid,act,item,value,value2,time)
(select * from fb_s.c_logbak);

两库之间导数据:

在源库导出:

vsql -d topcity -U dbadmin -w password -F ',' -At -o fs_user_info.csv -c "SELECT * FROM fb_s.user_info;" &
vsql -d topcity -U dbadmin -w password -F ',' -At -o fs_c_log.csv -c "SELECT * FROM fb_s.c_log;" &

目的库导入:
COPY fb_s.user_info FROM '/opt/fs_user_info.csv' EXCEPTIONS '/tmp/exp.log' DELIMITER ',';

COPY fb_s.c_log FROM '/opt/fs_c_log.csv' EXCEPTIONS '/tmp/exp.log' DELIMITER ',';

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