add database name to sql

docs/en/10-programming/03-insert.md

@@ -10,7 +10,7 @@ import TabItem from '@theme/TabItem';
 
 ## SQL Examples
 
-Here are some brief examples for `INSET` statement. You can execute these statements manually by TDengine CLI or TDengine Cloud Explorer or programmatically by TDengine connectors. 
+Here are some brief examples for `INSERT` statement. You can execute these statements manually by TDengine CLI or TDengine Cloud Explorer or programmatically by TDengine connectors. 
 
 ### Insert Single Row
 
@@ -30,10 +30,10 @@ INSERT INTO test.d101 VALUES (1538548684000, 10.2, 220, 0.23) (1538548696650, 10
 
 ### Insert into Multiple Tables
 
-Data can be inserted into multiple tables in the same SQL statement. The example below inserts 2 rows into table "d101" and 1 row into table "d1002".
+Data can be inserted into multiple tables in the same SQL statement. The example below inserts 2 rows into table "d101" and 1 row into table "d102".
 
 ```sql
-INSERT INTO test.d101 VALUES (1538548685000, 10.3, 219, 0.31) (1538548695000, 12.6, 218, 0.33) d1002 VALUES (1538548696800, 12.3, 221, 0.31);
+INSERT INTO test.d101 VALUES (1538548685000, 10.3, 219, 0.31) (1538548695000, 12.6, 218, 0.33) d102 VALUES (1538548696800, 12.3, 221, 0.31);
 ```
 
 For more details about `INSERT` please refer to [INSERT](https://docs.tdengine.com/cloud/taos-sql/insert).

docs/en/10-programming/04-query.md

@@ -49,22 +49,22 @@ In summary, records across subtables can be aggregated by a simple query on thei
 In [TDengine CLI](../tool/cli) `taos`, use the SQL below to get the average voltage of all the meters in California grouped by location.
 
 ```sql title="SQL"
-SELECT AVG(voltage) FROM test.meters GROUP BY location;
+SELECT location, AVG(voltage) FROM test.meters GROUP BY location;
 ```
 
 ```txt title="output"
-       avg(voltage)        |
-============================
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
-             109.507000000 |
+         location         |       avg(voltage)        |
+=======================================================
+ California.PaloAlto      |             109.507000000 |
+ California.Sunnyvale     |             109.507000000 |
+ California.MountainView  |             109.507000000 |
+ California.SanFrancisco  |             109.507000000 |
+ California.SanJose       |             109.507000000 |
+ California.SanDiego      |             109.507000000 |
+ California.SantaClara    |             109.507000000 |
+ California.Cupertino     |             109.507000000 |
+ California.Campbell      |             109.507000000 |
+ California.LosAngles     |             109.507000000 |
 Query OK, 10 row(s) in set
 ```
 

docs/en/12-stream.md

@@ -40,28 +40,28 @@ Then create four subtables as follows:
 ```sql
 CREATE STABLE power.meters (ts timestamp, current float, voltage int, phase float) TAGS (location binary(64), groupId int);
 
-CREATE TABLE power.d101 USING meters TAGS ("California.SanFrancisco", 2);
-CREATE TABLE power.d102 USING meters TAGS ("California.SanFrancisco", 3);
-CREATE TABLE power.d103 USING meters TAGS ("California.LosAngeles", 2);
-CREATE TABLE power.d104 USING meters TAGS ("California.LosAngeles", 3);
+CREATE TABLE power.d101 USING power.meters TAGS ("California.SanFrancisco", 2);
+CREATE TABLE power.d102 USING power.meters TAGS ("California.SanFrancisco", 3);
+CREATE TABLE power.d103 USING power.meters TAGS ("California.LosAngeles", 2);
+CREATE TABLE power.d104 USING power.meters TAGS ("California.LosAngeles", 3);
 ```
 
 ### Create a Stream
 
 ```sql
-create stream current_stream into current_stream_output_stb as select _wstart as start, _wend as end, max(current) as max_current from meters where voltage <= 220 interval (5s);
+create stream current_stream into current_stream_output_stb as select _wstart as start, _wend as end, max(current) as max_current from power.meters where voltage <= 220 interval (5s);
 ```
 
 ### Write Data
 ```sql
-insert into d101 values("2018-10-03 14:38:05.000", 10.30000, 219, 0.31000);
-insert into d101 values("2018-10-03 14:38:15.000", 12.60000, 218, 0.33000);
-insert into d101 values("2018-10-03 14:38:16.800", 12.30000, 221, 0.31000);
-insert into d102 values("2018-10-03 14:38:16.650", 10.30000, 218, 0.25000);
-insert into d103 values("2018-10-03 14:38:05.500", 11.80000, 221, 0.28000);
-insert into d103 values("2018-10-03 14:38:16.600", 13.40000, 223, 0.29000);
-insert into d104 values("2018-10-03 14:38:05.000", 10.80000, 223, 0.29000);
-insert into d104 values("2018-10-03 14:38:06.500", 11.50000, 221, 0.35000);
+insert into power.d101 values("2018-10-03 14:38:05.000", 10.30000, 219, 0.31000);
+insert into power.d101 values("2018-10-03 14:38:15.000", 12.60000, 218, 0.33000);
+insert into power.d101 values("2018-10-03 14:38:16.800", 12.30000, 221, 0.31000);
+insert into power.d102 values("2018-10-03 14:38:16.650", 10.30000, 218, 0.25000);
+insert into power.d103 values("2018-10-03 14:38:05.500", 11.80000, 221, 0.28000);
+insert into power.d103 values("2018-10-03 14:38:16.600", 13.40000, 223, 0.29000);
+insert into power.d104 values("2018-10-03 14:38:05.000", 10.80000, 223, 0.29000);
+insert into power.d104 values("2018-10-03 14:38:06.500", 11.50000, 221, 0.35000);
 ```
 
 ### Query the Results
@@ -90,7 +90,7 @@ The procedure from the previous scenario is used to create the database.
 ### Create a Stream
 
 ```sql
-create stream power_stream into power_stream_output_stb as select ts, concat_ws(".", location, tbname) as meter_location, current*voltage*cos(phase) as active_power, current*voltage*sin(phase) as reactive_power from meters partition by tbname;
+create stream power_stream into power_stream_output_stb as select ts, concat_ws(".", location, tbname) as meter_location, current*voltage*cos(phase) as active_power, current*voltage*sin(phase) as reactive_power from power.meters partition by tbname;
 ```
 
 ### Write data
@@ -99,7 +99,7 @@ The procedure from the previous scenario is used to write the data.
 
 ### Query the Results
 ```sql title="SQL"
-taos> select ts, meter_location, active_power, reactive_power from power_stream_output_stb;
+select ts, meter_location, active_power, reactive_power from power_stream_output_stb;
 ```
 ```txt title="output"
            ts            |         meter_location         |       active_power        |      reactive_power       |