From 01a850a8ad51e8f27f5eae8125c34eca29becfe3 Mon Sep 17 00:00:00 2001
From: Aolin <aolin.zhang@pingcap.com>
Date: Thu, 18 Apr 2024 10:37:43 +0800
Subject: [PATCH] ebnf: show bindings, show databases, show privileges, show
 config (#17079)

---
 sql-statements/sql-statement-show-bindings.md | 29 +++++--------------
 sql-statements/sql-statement-show-config.md   | 19 +++++-------
 .../sql-statement-show-databases.md           | 18 +++++-------
 .../sql-statement-show-privileges.md          | 13 ++++-----
 4 files changed, 28 insertions(+), 51 deletions(-)

diff --git a/sql-statements/sql-statement-show-bindings.md b/sql-statements/sql-statement-show-bindings.md
index 7cb5f12ea63d..7c736d272e22 100644
--- a/sql-statements/sql-statement-show-bindings.md
+++ b/sql-statements/sql-statement-show-bindings.md
@@ -10,30 +10,17 @@ aliases: ['/docs-cn/dev/sql-statements/sql-statement-show-bindings/']
 
 ## 语法图
 
-**ShowStmt:**
+```ebnf+diagram
+ShowBindingsStmt ::=
+    "SHOW" ("GLOBAL" | "SESSION")? "BINDINGS" ShowLikeOrWhere?
 
-![ShowStmt](/media/sqlgram/ShowStmt.png)
-
-**ShowTargetFilterable:**
-
-![ShowTargetFilterable](/media/sqlgram/ShowTargetFilterable.png)
-
-**GlobalScope:**
-
-![GlobalScope](/media/sqlgram/GlobalScope.png)
-
-**ShowLikeOrWhereOpt**
-
-![ShowLikeOrWhereOpt](/media/sqlgram/ShowLikeOrWhereOpt.png)
+ShowLikeOrWhere ::=
+    "LIKE" SimpleExpr
+|   "WHERE" Expression
+```
 
 ## 语法说明
 
-{{< copyable "sql" >}}
-
-```sql
-SHOW [GLOBAL | SESSION] BINDINGS [ShowLikeOrWhereOpt];
-```
-
 该语句会输出 GLOBAL 或者 SESSION 作用域内的执行计划绑定，在不指定作用域时默认作用域为 SESSION。目前 `SHOW BINDINGS` 会输出 8 列，具体如下：
 
 | 列名 | 说明            |
@@ -50,8 +37,6 @@ SHOW [GLOBAL | SESSION] BINDINGS [ShowLikeOrWhereOpt];
 
 ## 示例
 
-{{< copyable "sql" >}}
-
 ```sql
 CREATE TABLE t1 (
     id INT NOT NULL PRIMARY KEY auto_increment,
diff --git a/sql-statements/sql-statement-show-config.md b/sql-statements/sql-statement-show-config.md
index ffd4c3bc34dd..75801e7c11ae 100644
--- a/sql-statements/sql-statement-show-config.md
+++ b/sql-statements/sql-statement-show-config.md
@@ -10,20 +10,19 @@ aliases: ['/docs-cn/dev/sql-statements/sql-statement-show-config/']
 
 ## 语法图
 
-**ShowStmt:**
+```ebnf+diagram
+ShowConfigStmt ::=
+    "SHOW" "CONFIG" ShowLikeOrWhere?
 
-![ShowStmt](/media/sqlgram/ShowStmt.png)
-
-**ShowTargetFilterable:**
-
-![ShowTargetFilterable](/media/sqlgram/ShowTargetFilterable.png)
+ShowLikeOrWhere ::=
+    "LIKE" SimpleExpr
+|   "WHERE" Expression
+```
 
 ## 示例
 
 显示所有配置：
 
-{{< copyable "sql" >}}
-
 ```sql
 SHOW CONFIG;
 ```
@@ -41,8 +40,6 @@ SHOW CONFIG;
 
 显示 `type` 是 `tidb` 的配置：
 
-{{< copyable "sql" >}}
-
 ```sql
 SHOW CONFIG WHERE type = 'tidb' AND name = 'advertise-address';
 ```
@@ -58,8 +55,6 @@ SHOW CONFIG WHERE type = 'tidb' AND name = 'advertise-address';
 
 也可以用 `LIKE` 子句来显示 `type` 是 `tidb` 的配置：
 
-{{< copyable "sql" >}}
-
 ```sql
 SHOW CONFIG LIKE 'tidb';
 ```
diff --git a/sql-statements/sql-statement-show-databases.md b/sql-statements/sql-statement-show-databases.md
index ad35898d513e..b4fe3489c85e 100644
--- a/sql-statements/sql-statement-show-databases.md
+++ b/sql-statements/sql-statement-show-databases.md
@@ -14,16 +14,17 @@ aliases: ['/docs-cn/dev/sql-statements/sql-statement-show-databases/','/docs-cn/
 
 **ShowDatabasesStmt:**
 
-![ShowDatabasesStmt](/media/sqlgram/ShowDatabasesStmt.png)
+```ebnf+diagram
+ShowDatabasesStmt ::=
+    "SHOW" "DATABASES" ShowLikeOrWhere?
 
-**ShowLikeOrWhereOpt:**
-
-![ShowLikeOrWhereOpt](/media/sqlgram/ShowLikeOrWhereOpt.png)
+ShowLikeOrWhere ::=
+    "LIKE" SimpleExpr
+|   "WHERE" Expression
+```
 
 ## 示例
 
-{{< copyable "sql" >}}
-
 ```sql
 SHOW DATABASES;
 ```
@@ -40,8 +41,6 @@ SHOW DATABASES;
 4 rows in set (0.00 sec)
 ```
 
-{{< copyable "sql" >}}
-
 ```sql
 CREATE DATABASE mynewdb;
 ```
@@ -50,8 +49,6 @@ CREATE DATABASE mynewdb;
 Query OK, 0 rows affected (0.10 sec)
 ```
 
-{{< copyable "sql" >}}
-
 ```sql
 SHOW DATABASES;
 ```
@@ -78,3 +75,4 @@ SHOW DATABASES;
 * [SHOW SCHEMAS](/sql-statements/sql-statement-show-schemas.md)
 * [DROP DATABASE](/sql-statements/sql-statement-drop-database.md)
 * [CREATE DATABASE](/sql-statements/sql-statement-create-database.md)
+* [`INFORMATION_SCHEMA.SCHEMATA`](/information-schema/information-schema-schemata.md)
diff --git a/sql-statements/sql-statement-show-privileges.md b/sql-statements/sql-statement-show-privileges.md
index 97a6549847af..89d62b0df99d 100644
--- a/sql-statements/sql-statement-show-privileges.md
+++ b/sql-statements/sql-statement-show-privileges.md
@@ -10,20 +10,18 @@ aliases: ['/docs-cn/dev/sql-statements/sql-statement-show-privileges/','/docs-cn
 
 ## 语法图
 
-**ShowStmt:**
-
-![ShowStmt](/media/sqlgram/ShowStmt.png)
+```ebnf+diagram
+ShowPrivilegesStmt ::=
+    "SHOW" "PRIVILEGES"
+```
 
 ## 示例
 
-{{< copyable "sql" >}}
-
 ```sql
-show privileges;
+SHOW PRIVILEGES;
 ```
 
 ```sql
-mysql> show privileges;
 +---------------------------------+---------------------------------------+-------------------------------------------------------+
 | Privilege                       | Context                               | Comment                                               |
 +---------------------------------+---------------------------------------+-------------------------------------------------------+
@@ -87,4 +85,5 @@ mysql> show privileges;
 ## 另请参阅
 
 * [SHOW GRANTS](/sql-statements/sql-statement-show-grants.md)
+* [权限管理](/privilege-management.md)
 * [`GRANT <privileges>`](/sql-statements/sql-statement-grant-privileges.md)