remove into place holder

app.py

@@ -35,8 +35,7 @@ target_database = st.sidebar.selectbox(
 input_text = st.sidebar.text_area(
     label='📋 Insert SQL',
     height=200,
-    value='select id, client_id from customer '
-          'where rownum <= 100'
+    placeholder='select id from customer where rownum <= 100'
 )
 
 input_file = st.sidebar.file_uploader(