add nested queries

src/.vuepress/sidebar/V2.0.x/en-Table.ts

@@ -155,6 +155,7 @@ export const enSidebar = {
             { text: 'FILL Clause', link: 'Fill-Clause' },
             { text: 'ORDER BY Clause', link: 'OrderBy-Clause' },
             { text: 'LIMIT&OFFSET Clause', link: 'Limit-Offset-Clause' },
+            { text: 'Nested Queries', link: 'Nested-Queries' },
           ],
         },
         {
@@ -165,6 +166,7 @@ export const enSidebar = {
             { text: 'Featured Functions', link: 'Featured-Functions' },
           ],
         },
+
       ],
     },
     {

src/.vuepress/sidebar/V2.0.x/zh-Table.ts

@@ -147,6 +147,7 @@ export const zhSidebar = {
             { text: 'FILL子句', link: 'Fill-Clause' },
             { text: 'ORDER BY子句', link: 'OrderBy-Clause' },
             { text: 'LIMIT&OFFSET子句', link: 'Limit-Offset-Clause' },
+            { text: '嵌套查询', link: 'Nested-Queries' },
           ],
         },
         {
@@ -157,6 +158,7 @@ export const zhSidebar = {
             { text: '特色函数', link: 'Featured-Functions' },
           ],
         },
+
       ],
     },
     {

src/.vuepress/sidebar_timecho/V2.0.x/en-Table.ts

@@ -160,6 +160,7 @@ export const enSidebar = {
             { text: 'FILL Clause', link: 'Fill-Clause' },
             { text: 'ORDER BY Clause', link: 'OrderBy-Clause' },
             { text: 'LIMIT&OFFSET Clause', link: 'Limit-Offset-Clause' },
+            { text: 'Nested Queries', link: 'Nested-Queries' },
           ],
         },
         {
@@ -170,6 +171,7 @@ export const enSidebar = {
             { text: 'Featured Functions', link: 'Featured-Functions' },
           ],
         },
+
       ],
     },
     {

src/.vuepress/sidebar_timecho/V2.0.x/zh-Table.ts

@@ -151,6 +151,7 @@ export const zhSidebar = {
             { text: 'FILL子句', link: 'Fill-Clause' },
             { text: 'ORDER BY子句', link: 'OrderBy-Clause' },
             { text: 'LIMIT&OFFSET子句', link: 'Limit-Offset-Clause' },
+            { text: '嵌套查询', link: 'Nested-Queries' },
           ],
         },
         {
@@ -161,6 +162,7 @@ export const zhSidebar = {
             { text: '特色函数', link: 'Featured-Functions' },
           ],
         },
+
       ],
     },
     {