vertica MySQL_Vertica数据库操作

删除主键(Vertica数据库的主键值并非唯一的)：

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

添加及改动字段：

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 ',';