diff --git a/packages/nc-gui/components/project/spreadsheet/components/editColumn/FormulaOptions.vue b/packages/nc-gui/components/project/spreadsheet/components/editColumn/FormulaOptions.vue
index c607a8ccbd..b6875a6174 100644
--- a/packages/nc-gui/components/project/spreadsheet/components/editColumn/FormulaOptions.vue
+++ b/packages/nc-gui/components/project/spreadsheet/components/editColumn/FormulaOptions.vue
@@ -43,6 +43,9 @@
                     <span
                       class="caption primary--text text--lighten-2 font-weight-bold"
                     >
+                      <v-icon color="primary lighten-2" small class="mr-1">
+                        mdi-function
+                      </v-icon>
                       {{ it.text }}
                     </span>
                   </v-list-item-content>
@@ -70,10 +73,12 @@
                 <span
                   class="caption text--darken-3 font-weight-bold"
                 >
+                  <v-icon color="grey darken-4" small class="mr-1">
+                    {{ it.icon }}
+                  </v-icon>
                   {{ it.text }}
                 </span>
               </v-list-item-content>
-
               <v-list-item-action>
                 <span class="caption">
                   Column
@@ -87,6 +92,9 @@
                 <span
                   class="caption indigo--text text--darken-3 font-weight-bold"
                 >
+                  <v-icon color="indigo darken-3" small class="mr-1">
+                    mdi-calculator-variant
+                  </v-icon>
                   {{ it.text }}
                 </span>
               </v-list-item-content>
@@ -109,6 +117,7 @@
 import debounce from 'debounce'
 import jsep from 'jsep'
 import { UITypes, jsepCurlyHook } from 'nocodb-sdk'
+import { getUIDTIcon } from '../../helpers/uiTypes'
 import formulaList, { formulas, formulaTypes } from '../../../../../helpers/formulaList'
 import { getWordUntilCaret, insertAtCursor } from '@/helpers'
 import NcAutocompleteTree from '@/helpers/NcAutocompleteTree'
@@ -146,6 +155,7 @@ export default {
         ...this.meta.columns.filter(c => !this.column || this.column.id !== c.id).map(c => ({
           text: c.title,
           type: 'column',
+          icon: getUIDTIcon(c.uidt),
           c
         })),
         ...this.availableBinOps.map(op => ({
@@ -534,13 +544,18 @@ export default {
         return 'N/A'
       }
     },
+    isCurlyBracketBalanced() {
+      // count number of opening curly brackets and closing curly brackets
+      const cntCurlyBrackets = (this.$refs.input.$el.querySelector('input').value.match(/\{|}/g) || []).reduce((acc, cur) => (acc[cur] = (acc[cur] || 0) + 1, acc), {})
+      return (cntCurlyBrackets['{'] || 0) === (cntCurlyBrackets['}'] || 0)
+    },
     appendText(it) {
       const text = it.text
       const len = this.wordToComplete.length
       if (it.type === 'function') {
         this.$set(this.formula, 'value', insertAtCursor(this.$refs.input.$el.querySelector('input'), text, len, 1))
       } else if (it.type === 'column') {
-        this.$set(this.formula, 'value', insertAtCursor(this.$refs.input.$el.querySelector('input'), '{' + text + '}', len))
+        this.$set(this.formula, 'value', insertAtCursor(this.$refs.input.$el.querySelector('input'), '{' + text + '}', len + (!this.isCurlyBracketBalanced())))
       } else {
         this.$set(this.formula, 'value', insertAtCursor(this.$refs.input.$el.querySelector('input'), text, len))
       }
@@ -560,6 +575,9 @@ export default {
       const parts = query.split(/\W+/)
       this.wordToComplete = parts.pop()
       this.suggestion = this.acTree.complete(this.wordToComplete)?.sort((x, y) => this.sortOrder[x.type] - this.sortOrder[y.type])
+      if (!this.isCurlyBracketBalanced()) {
+        this.suggestion = this.suggestion.filter(v => v.type === 'column')
+      }
       this.autocomplete = !!this.suggestion.length
     },
     selectText() {
diff --git a/packages/nc-gui/components/project/spreadsheet/helpers/uiTypes.js b/packages/nc-gui/components/project/spreadsheet/helpers/uiTypes.js
index 693b147017..11f85acfec 100644
--- a/packages/nc-gui/components/project/spreadsheet/helpers/uiTypes.js
+++ b/packages/nc-gui/components/project/spreadsheet/helpers/uiTypes.js
@@ -151,10 +151,20 @@ const uiTypes = [
 ]
 
 const getUIDTIcon = (uidt) => {
-  return ([...uiTypes, {
-    name: 'CreateTime',
-    icon: 'mdi-calendar-clock'
-  }].find(t => t.name === uidt) || {}).icon
+  return ([...uiTypes,
+    {
+      name: 'CreateTime',
+      icon: 'mdi-calendar-clock'
+    },
+    {
+      name: 'ID',
+      icon: 'mdi-identifier'
+    },
+    {
+      name: 'ForeignKey',
+      icon: 'mdi-link-variant'
+    }
+  ].find(t => t.name === uidt) || {}).icon
 }
 
 export {
diff --git a/packages/nocodb/src/lib/dataMapper/lib/sql/formulav2/formulaQueryBuilderv2.ts b/packages/nocodb/src/lib/dataMapper/lib/sql/formulav2/formulaQueryBuilderv2.ts
index 35e2ecab30..a73841eb05 100644
--- a/packages/nocodb/src/lib/dataMapper/lib/sql/formulav2/formulaQueryBuilderv2.ts
+++ b/packages/nocodb/src/lib/dataMapper/lib/sql/formulav2/formulaQueryBuilderv2.ts
@@ -612,7 +612,21 @@ export default async function formulaQueryBuilderv2(
 
       return knex.raw(
         `${pt.callee.name}(${pt.arguments
-          .map(arg => fn(arg).toQuery())
+          .map(arg => {
+            const query = fn(arg).toQuery();
+            if (pt.callee.name === 'CONCAT') {
+              if (knex.clientType() === 'mysql2') {
+                // mysql2: CONCAT() returns NULL if any argument is NULL.
+                // adding IFNULL to convert NULL values to empty strings
+                return `IFNULL(${query}, '')`;
+              } else {
+                // do nothing
+                // pg / mssql: Concatenate all arguments. NULL arguments are ignored.
+                // sqlite3: special handling - See BinaryExpression
+              }
+            }
+            return query;
+          })
           .join()})${colAlias}`
       );
     } else if (pt.type === 'Literal') {
@@ -637,13 +651,16 @@ export default async function formulaQueryBuilderv2(
       pt.left.fnName = pt.left.fnName || 'ARITH';
       pt.right.fnName = pt.right.fnName || 'ARITH';
 
-      const query = knex.raw(
-        `${fn(pt.left, null, pt.operator).toQuery()} ${pt.operator} ${fn(
-          pt.right,
-          null,
-          pt.operator
-        ).toQuery()}${colAlias}`
-      );
+      const left = fn(pt.left, null, pt.operator).toQuery();
+      const right = fn(pt.right, null, pt.operator).toQuery();
+      let sql = `${left} ${pt.operator} ${right}${colAlias}`;
+
+      // handle NULL values when calling CONCAT for sqlite3
+      if (pt.left.fnName === 'CONCAT' && knex.clientType() === 'sqlite3') {
+        sql = `COALESCE(${left}, '') ${pt.operator} COALESCE(${right},'')${colAlias}`;
+      }
+
+      const query = knex.raw(sql);
       if (prevBinaryOp && pt.operator !== prevBinaryOp) {
         query.wrap('(', ')');
       }
diff --git a/packages/nocodb/src/lib/noco-models/Column.ts b/packages/nocodb/src/lib/noco-models/Column.ts
index 63d942599f..0592a79bc2 100644
--- a/packages/nocodb/src/lib/noco-models/Column.ts
+++ b/packages/nocodb/src/lib/noco-models/Column.ts
@@ -541,7 +541,7 @@ export default class Column<T = any> implements ColumnType {
             title: col?.title
           })
         )
-          await FormulaColumn.update(formula.id, formula, ncMeta);
+          await FormulaColumn.update(formulaCol.id, formula, ncMeta);
       }
     }
 
diff --git a/packages/nocodb/src/lib/noco/meta/api/columnApis.ts b/packages/nocodb/src/lib/noco/meta/api/columnApis.ts
index 5c02957984..b00d90e6ee 100644
--- a/packages/nocodb/src/lib/noco/meta/api/columnApis.ts
+++ b/packages/nocodb/src/lib/noco/meta/api/columnApis.ts
@@ -649,7 +649,7 @@ export async function columnUpdate(req: Request, res: Response<TableType>) {
                     formula,
                     [new_column]
                   );
-                  await FormulaColumn.update(f.id, {
+                  await FormulaColumn.update(c.id, {
                     formula_raw: new_formula_raw
                   });
                 }