apache · wyx123654 · Jan 17, 2025
diff --git a/docs/sql-manual/sql-statements/Data-Definition-Statements/Drop/DROP-FUNCTION.md b/docs/sql-manual/sql-statements/Data-Definition-Statements/Drop/DROP-FUNCTION.md
@@ -24,43 +24,37 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## DROP-FUNCTION
+## Description
 
-### Name
+Delete a custom function.
 
-DROP FUNCTION
-
-### Description
-
-Delete a custom function. Function names and parameter types are exactly the same to be deleted.
-
-grammar:
+## Syntax
 
 ```sql
-DROP [GLOBAL] FUNCTION function_name
-     (arg_type [, ...])
+DROP [GLOBAL] FUNCTION <function_name> ( <arg_type>)
 ```
 
-Parameter Description:
+## Parameters
+
+| Parameters | Instructions |
+| -- | -- |
+| `<function_name>` | The name of the function to delete |
+| `<arg_type>` | To delete the argument list of the function |
 
-- `function_name`: the name of the function to delete
-- `arg_type`: the argument list of the function to delete
+## Return Value
 
-### Example
+The statement can be deleted if executed successfully. Special cases:
 
-1. Delete a function
+- A function can be deleted only when its name and parameter types are the same
 
-    ```sql
-    DROP FUNCTION my_add(INT, INT)
-    ```
-2. Delete a global function
+## Examples
 
-    ```sql
-    DROP GLOBAL FUNCTION my_add(INT, INT)
-    ```   
+```sql
+DROP FUNCTION my_add(INT, INT)
+```
 
-### Keywords
+```sql
+DROP GLOBAL FUNCTION my_add(INT, INT)
+```
 
-     DROP, FUNCTION
 
-### Best Practice
diff --git a/docs/sql-manual/sql-statements/Show-Statements/SHOW-CREATE-FUNCTION.md b/docs/sql-manual/sql-statements/Show-Statements/SHOW-CREATE-FUNCTION.md
@@ -24,46 +24,41 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## SHOW-CREATE-FUNCTION
+## Description
 
-### Name
+This statement is used to show the creation statement of a user-defined function
 
-SHOW CREATE FUNCTION
-
-### Description
-
-This statement is used to display the creation statement of the user-defined function
-
-grammar:
+## Syntax
 
 ```sql
-SHOW CREATE [GLOBAL] FUNCTION function_name(arg_type [, ...]) [FROM db_name]];
+SHOW CREATE [<GLOBAL>] FUNCTION <function_name>(<arg_type>) [FROM db_name]];
 ```
 
-illustrate:
-1. `global`: The show function is global 
-2. `function_name`: The name of the function to display
-3. `arg_type`: The parameter list of the function to display
-4. If db_name is not specified, the current default db is used
-
-**Note: the "global" keyword is only available after v2.0**
-
-### Example
+## Parameters
 
-1. Show the creation statement of the specified function under the default db
+| Parameters | Instructions |
+| -- | -- |
+| `<function_name>` | The name of the function to delete |
+| `<arg_type>` | To delete the argument list of the function |
 
-    ```sql
-    SHOW CREATE FUNCTION my_add(INT, INT)
-    ```
-2. Show the creation statement of the specified global function
+## Return Value
 
-    ```sql
-    SHOW CREATE GLOBAL FUNCTION my_add(INT, INT)
-    ```
+A custom function constructor clause
 
-### Keywords
+## Examples
 
-    SHOW, CREATE, FUNCTION
-
-### Best Practice
+```sql
+SHOW CREATE FUNCTION add_one(INT)
+```
 
+```text
+| Function Signature | Create Function
++--------------------+-------------------------------------------------------
+| add_one(INT)       | CREATE FUNCTION add_one(INT) RETURNS INT PROPERTIES (
+  "SYMBOL"="org.apache.doris.udf.AddOne",
+  "FILE"="file:///xxx.jar",
+  "ALWAYS_NULLABLE"="true",
+  "TYPE"="JAVA_UDF"
+  ); |
++--------------------+-------------------------------------------------------
+```
diff --git a/docs/sql-manual/sql-statements/Show-Statements/SHOW-FUNCTIONS.md b/docs/sql-manual/sql-statements/Show-Statements/SHOW-FUNCTIONS.md
@@ -24,70 +24,63 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## SHOW-FUNCTIONS
+## Description
 
-### Name
+View all custom (system-provided) functions in the database.
 
-SHOW FUNCTIONS
+You need to have a 'SHOW' permission on this database
 
-### Description
-
-View all custom (system-provided) functions under the database. If the user specifies a database, then view the corresponding database, otherwise directly query the database where the current session is located
-
-Requires `SHOW` permission on this database
-
-grammar
+## Syntax
 
 ```sql
-SHOW [FULL] [BUILTIN] FUNCTIONS [IN|FROM db] [LIKE 'function_pattern']
+SHOW [<FULL>] [<BUILTIN>] FUNCTIONS IN|FROM <db> [LIKE '<function_pattern>']
 ```
 
-Parameters
+## Parameters
 
->`full`: Indicates the detailed information of the display function
->`builtin`: Indicates the functions provided by the display system
->`db`: database name to query
->`function_pattern`: parameter used to filter function names
+| Parameters | Instructions |
+| -- | -- |
+| `<FULL>` | indicates that detailed information about the function is displayed |
+| `<BUILTIN>` | Indicates a function provided by the display system |
+| `<db>` | Name of the database to be queried |
+| `<function_pattern>` | Parameters used to filter function names |
 
-grammar
-
-```sql
-SHOW GLOBAL [FULL] FUNCTIONS [LIKE 'function_pattern']
-```
+## Return Value
 
-Parameters
+Specifies the result of a function that matches the function name filter under the database
 
->`global`: Indicates it means that the show function is a global function
->`full`: Indicates the detailed information of the display function
->`function_pattern`: parameter used to filter function names
-
-**Note: the "global" keyword is only available after v2.0**
-
-### Example
+## Examples
 
 ```sql
-mysql> show full functions in testDb\G
-**************************** 1. row ******************** ******
-        Signature: my_add(INT,INT)
-      Return Type: INT
-    Function Type: Scalar
+show full functions in testDb
+```
+
+```text
+*************************** 1. row ***************************
+Signature: my_add(INT,INT)
+Return Type: INT
+Function Type: Scalar
 Intermediate Type: NULL
-       Properties: {"symbol":"_ZN9doris_udf6AddUdfEPNS_15FunctionContextERKNS_6IntValES4_","object_file":"http://host:port/libudfsample.so","md5":"cfe7a362d10f3aaf6c49974ee0f1f878"}
-**************************** 2. row ******************** ******
-        Signature: my_count(BIGINT)
-      Return Type: BIGINT
-    Function Type: Aggregate
+Properties: {"symbol":"_ZN9doris_udf6AddUdfEPNS_15FunctionContextERKNS_6IntValES4_","object_file":"http://host:port/libudfsample.so","md5":"cfe7a362d10f3aaf6c49974ee0f1f878"}
+*************************** 2. row ***************************
+Signature: my_count(BIGINT)
+Return Type: BIGINT
+Function Type: Aggregate
 Intermediate Type: NULL
-       Properties: { "object_file": "http: // host: port / libudasample.so", "finalize_fn": "_ZN9doris_udf13CountFinalizeEPNS_15FunctionContextERKNS_9BigIntValE", "init_fn": "_ZN9doris_udf9CountInitEPNS_15FunctionContextEPNS_9BigIntValE", "merge_fn": "_ZN9doris_udf10CountMergeEPNS_15FunctionContextERKNS_9BigIntValEPS2_", "md5": " 37d185f80f95569e2676da3d5b5b9d2f","update_fn":"_ZN9doris_udf11CountUpdateEPNS_15FunctionContextERKNS_6IntValEPNS_9BigIntValE"}
-**************************** 3. row ******************** ******
-        Signature: id_masking(BIGINT)
-      Return Type: VARCHAR
-    Function Type: Alias
+Properties: {"object_file":"http://host:port/libudasample.so","finalize_fn":"_ZN9doris_udf13CountFinalizeEPNS_15FunctionContextERKNS_9BigIntValE","init_fn":"_ZN9doris_udf9CountInitEPNS_15FunctionContextEPNS_9BigIntValE","merge_fn":"_ZN9doris_udf10CountMergeEPNS_15FunctionContextERKNS_9BigIntValEPS2_","md5":"37d185f80f95569e2676da3d5b5b9d2f","update_fn":"_ZN9doris_udf11CountUpdateEPNS_15FunctionContextERKNS_6IntValEPNS_9BigIntValE"}
+*************************** 3. row ***************************
+Signature: id_masking(BIGINT)
+Return Type: VARCHAR
+Function Type: Alias
 Intermediate Type: NULL
-       Properties: {"parameter":"id","origin_function":"concat(left(`id`, 3), `****`, right(`id`, 4))"}
+Properties: {"parameter":"id","origin_function":"concat(left(`id`, 3), `****`, right(`id`, 4))"}
+```
 
-3 rows in set (0.00 sec)
-mysql> show builtin functions in testDb like 'year%';
+```sql
+show builtin functions in testDb like 'year%';
+```
+
+```text
 +---------------+
 | Function Name |
 +---------------+
@@ -96,9 +89,34 @@ mysql> show builtin functions in testDb like 'year%';
 | years_diff    |
 | years_sub     |
 +---------------+
-2 rows in set (0.00 sec)
+```
+
 
-mysql> show global full functions\G;
+## Syntax
+
+```sql
+SHOW GLOBAL [<FULL>] FUNCTIONS [LIKE '<function_pattern>']
+```
+
+## Parameters
+
+| Parameters | Instructions |
+| -- | -- |
+| `<FULL>` | Displays detailed information about the function |
+| `<function_pattern>` | Parameters used to filter function names |
+
+
+## Return Value
+
+Query the result of the function that matches the function name filtering in the database where the current session resides
+
+## Examples
+
+```sql
+show global full functions
+```
+
+```text
 *************************** 1. row ***************************
         Signature: decimal(ALL, INT, INT)
       Return Type: VARCHAR
@@ -111,22 +129,17 @@ Intermediate Type: NULL
     Function Type: Alias
 Intermediate Type: NULL
        Properties: {"parameter":"id","origin_function":"concat(left(`id`, 3), `****`, right(`id`, 4))"}
-2 rows in set (0.00 sec)
-
-mysql> show global functions ;
+```
+
+```sql
+show global functions
+```
+
+```text
 +---------------+
 | Function Name |
 +---------------+
 | decimal       |
 | id_masking    |
 +---------------+
-2 rows in set (0.00 sec)    
-
 ```
-
-### Keywords
-
-    SHOW, FUNCTIONS
-
-### Best Practice
-
diff --git a/...rent/sql-manual/sql-statements/Data-Definition-Statements/Drop/DROP-FUNCTION.md b/...rent/sql-manual/sql-statements/Data-Definition-Statements/Drop/DROP-FUNCTION.md
@@ -24,44 +24,37 @@ specific language governing permissions and limitations
 under the License.
 -->
 
-## DROP-FUNCTION
-
-### Name
-
-DROP FUNCTION
-
 ## 描述
 
-删除一个自定义函数。函数的名字、参数类型完全一致才能够被删除
+删除一个自定义函数。
 
-语法：
+## 语法
 
 ```sql
-DROP [GLOBAL] FUNCTION function_name
-    (arg_type [, ...])
+DROP [GLOBAL] FUNCTION <function_name> ( <arg_type>)
 ```
 
-参数说明：
+## 参数
 
-- `function_name`: 要删除函数的名字
-- `arg_type`: 要删除函数的参数列表
+| 参数 | 说明 |
+| -- | -- |
+| `<function_name>` | 要删除函数的名字 |
+| `<arg_type>` | 要删除函数的参数列表 |
 
-## 举例
+## 返回值
 
-1. 删除掉一个函数
+语句执行成功即可删除。特殊情况：
 
-   ```sql
-   DROP FUNCTION my_add(INT, INT)
-   ```
-2. 删除掉一个全局函数
+- 函数的名字、参数类型完全一致才能够被删除
 
-    ```sql
-    DROP GLOBAL FUNCTION my_add(INT, INT)
-    ```      
+## 举例
 
-### Keywords
+```sql
+DROP FUNCTION my_add(INT, INT)
+```
 
-    DROP, FUNCTION
+```sql
+DROP GLOBAL FUNCTION my_add(INT, INT)
+```
 
-### Best Practice