mirror of
https://github.com/taosdata/TDengine
synced 2026-05-24 10:09:01 +00:00
37 lines
No EOL
1.7 KiB
SQL
37 lines
No EOL
1.7 KiB
SQL
drop database if exists db;
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create database db ;
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create table db.meters(ts timestamp, current float, voltage int, phase float) tags(groupid int, location varchar(24));
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create table db.d0 using db.meters tags(1, 'china');
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insert into db.d0 values(1700000000001,1,1,1);
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insert into db.d0 values(1700000000002,2,2,2);
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insert into db.d0 values(1700000000003,3,3,4);
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insert into db.d0 values(1700000000004,4,4,4);
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insert into db.d0 values(1700000000005,5,5,5);
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show db.tables;
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set max_binary_display_width 100;
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explain select * from db.meters;
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show dnodes;
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desc db.d0;
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select * from db.meters limit 2;
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drop database if exists dbus;
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create database dbus precision 'us';
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create table dbus.meters(ts timestamp, current float, voltage int, phase float) tags(groupid int, location varchar(24));
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create table dbus.d0 using dbus.meters tags(1, 'china');
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insert into dbus.d0 values(1700000000000001,1,1,1);
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insert into dbus.d0 values(1700000000000002,2,2,2);
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insert into dbus.d0 values(1700000000000003,3,3,3);
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insert into dbus.d0 values(1700000000000004,4,4,4);
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insert into dbus.d0 values(1700000000000005,5,5,5);
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select * from dbus.meters;
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select * from dbus.meters\G;
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drop database if exists duns;
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create database duns precision 'ns';
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create table duns.meters(ts timestamp, current float, voltage int, phase float) tags(groupid int, location varchar(24));
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create table duns.d0 using duns.meters tags(1, 'china');
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insert into duns.d0 values(1700000000000000001,1,1,1);
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insert into duns.d0 values(1700000000000000002,2,2,2);
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insert into duns.d0 values(1700000000000000003,3,3,4);
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insert into duns.d0 values(1700000000000000004,4,4,4);
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insert into duns.d0 values(1700000000000000005,5,5,5);
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select * from duns.meters;
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select * from duns.meters\G; |