diff --git a/cclqms-vue/src/views/modules/common/Chooselist_eam.vue b/cclqms-vue/src/views/modules/common/Chooselist_eam.vue
index 3950813..fe2355e 100644
--- a/cclqms-vue/src/views/modules/common/Chooselist_eam.vue
+++ b/cclqms-vue/src/views/modules/common/Chooselist_eam.vue
@@ -126,6 +126,8 @@ export default {
         sqlcode: '',
         tagno: '',
       },
+      conditionField1: '',
+      conditionField2: '',
       defaultParam: false
     }
   },
@@ -157,6 +159,8 @@ export default {
       getChooselistEam({"tagNo": tagNo}).then(({data}) => {
         this.columnList = []
         this.baseListData = data.data
+        this.conditionField1 = this.qualifyAmbiguousUserField(this.baseListData.fieldname1, this.baseListData.sqlcode)
+        this.conditionField2 = this.qualifyAmbiguousUserField(this.baseListData.fieldname2, this.baseListData.sqlcode)
         let start = data.data.sqlcode.toUpperCase().indexOf("Select".toUpperCase())
         let end = data.data.sqlcode.toUpperCase().indexOf("from".toUpperCase())
         let length = end - start
@@ -221,6 +225,8 @@ export default {
 
     getDataList (bool) {
       let sql = this.baseListData.sqlcode
+      const field1 = this.conditionField1 || this.baseListData.fieldname1
+      const field2 = this.conditionField2 || this.baseListData.fieldname2
       console.log(this.param1)
       console.log(this.param2)
       console.log(this.param3)
@@ -229,13 +235,17 @@ export default {
       console.log(this.param6)
       console.log(this.baseListData)
       if (bool) {
-        sql += " and (" + this.baseListData.fieldname1 + " like '%" + this.param + "%' OR " + this.baseListData.fieldname2 + " like '%" + this.param + "%'" + " ) "
+        if (field1 && field2) {
+          sql += " and (" + field1 + " like '%" + this.param + "%' OR " + field2 + " like '%" + this.param + "%'" + " ) "
+        } else if (field1) {
+          sql += " and " + field1 + " like '%" + this.param + "%'"
+        }
       }
-      if (this.param1) {
-        sql += " and " + this.baseListData.fieldname1 + " like '%" + this.param1 + "%'"
+      if (this.param1 && field1) {
+        sql += " and " + field1 + " like '%" + this.param1 + "%'"
       }
-      if (this.param2) {
-        sql += " and " + this.baseListData.fieldname2 + " like '%" + this.param2 + "%'"
+      if (this.param2 && field2) {
+        sql += " and " + field2 + " like '%" + this.param2 + "%'"
       }
       if (this.param3) {
         sql += " and " + this.baseListData.fieldname3 + " like '%" + this.param3 + "%'"
@@ -287,6 +297,18 @@ export default {
       this.param7 = this.$store.state.user.name
       this.param = ''
       this.dataList = []
+    },
+    qualifyAmbiguousUserField (field, sqlCode) {
+      const fieldText = String(field || '').trim()
+      if (!fieldText || fieldText.indexOf('.') > -1) {
+        return fieldText
+      }
+      const sqlText = String(sqlCode || '').toLowerCase()
+      const hasUserAliasJoin = sqlText.indexOf('from sys_user as a') > -1 && sqlText.indexOf('join access_role as b') > -1
+      if (hasUserAliasJoin && (fieldText === 'username' || fieldText === 'user_display')) {
+        return 'a.' + fieldText
+      }
+      return fieldText
     }
   }
 }