update doc on alter pw/create user/delete storage group (#499)

docs/Documentation-CHN/UserGuide/4-Operation Manual/7-IoTDB Query Language.md

@@ -33,6 +33,15 @@ SET STORAGE GROUP TO <PrefixPath>
 Eg: IoTDB > SET STORAGE GROUP TO root.ln.wf01.wt01
 Note: PrefixPath can not include `*`
 ```
+* 删除存储组
+
+```
+DELETE STORAGE GROUP <PrefixPath> [COMMA <PrefixPath>]*
+Eg: IoTDB > DELETE STORAGE GROUP root.ln.wf01.wt01
+Eg: IoTDB > DELETE STORAGE GROUP root.ln.wf01.wt01, root.ln.wf01.wt02
+Note: PrefixPath can not include `*`
+```
+
 * 创建时间序列语句
 
 ```
@@ -274,8 +283,8 @@ Note: <FillClause> can not use <LIMITClause> but not <SLIMITClause>.
 ```
 CREATE USER <userName> <password>;  
 userName:=identifier  
-password:=identifier
-Eg: IoTDB > CREATE USER thulab pwd;
+password:=string
+Eg: IoTDB > CREATE USER thulab 'pwd';
 ```
 
 * 删除用户
@@ -427,10 +436,10 @@ Eg: IoTDB > LIST ALL USER OF ROLE roleuser;
 * 更新密码 
 
 ```
-UPDATE USER <username> SET PASSWORD <password>;
+ALTER USER <username> SET PASSWORD <password>;
 roleName:=identifier
-password:=identifier
-Eg: IoTDB > UPDATE USER tempuser SET PASSWORD newpwd;
+password:=string
+Eg: IoTDB > UPDATE USER tempuser SET PASSWORD 'newpwd';
 ```
 
 ### 功能

docs/Documentation/UserGuide/4-Operation Manual/7-IoTDB Query Statement.md

@@ -41,6 +41,16 @@ SET STORAGE GROUP TO <PrefixPath>
 Eg: IoTDB > SET STORAGE GROUP TO root.ln.wf01.wt01
 Note: PrefixPath can not include `*`
 ```
+
+* Delete Storage Group
+
+```
+DELETE STORAGE GROUP <PrefixPath> [COMMA <PrefixPath>]*
+Eg: IoTDB > DELETE STORAGE GROUP root.ln.wf01.wt01
+Eg: IoTDB > DELETE STORAGE GROUP root.ln.wf01.wt01, root.ln.wf01.wt02
+Note: PrefixPath can not include `*`
+```
+
 * Create Timeseries Statement
 
 ```
@@ -359,8 +369,8 @@ For example, "select s0,s0,s1 from root.sg.* group by device" is not equal to "s
 ```
 CREATE USER <userName> <password>;  
 userName:=identifier  
-password:=identifier
-Eg: IoTDB > CREATE USER thulab pwd;
+password:=string
+Eg: IoTDB > CREATE USER thulab 'pwd';
 ```
 
 * Delete User
@@ -509,13 +519,13 @@ roleName:=identifier
 Eg: IoTDB > LIST ALL USER OF ROLE roleuser;
 ```
 
-* Update Password
+* Alter Password
 
 ```
-UPDATE USER <username> SET PASSWORD <password>;
+ALTER USER <username> SET PASSWORD <password>;
 roleName:=identifier
-password:=identifier
-Eg: IoTDB > UPDATE USER tempuser SET PASSWORD newpwd;
+password:=string
+Eg: IoTDB > UPDATE USER tempuser SET PASSWORD 'newpwd';
 ```
 
 ### Functions

server/src/test/java/org/apache/iotdb/db/integration/IOTDBFillIT.java → server/src/test/java/org/apache/iotdb/db/integration/IoTDBFillIT.java

@@ -33,7 +33,7 @@ import org.junit.Assert;
 import org.junit.Before;
 import org.junit.Test;
 
-public class IOTDBFillIT {
+public class IoTDBFillIT {
 
   private static IoTDB daemon;