multiple definition query for multiple layers

[marklee1869]

I need to write python code to apply definition query for all layers at once, i already tried some code which i insert it below but it makes a new layers 

# Set the workspace (change to your desired geodatabase or folder)
arcpy.env.workspace = r"D:\abo-ammar\geoParcel.gdb"

# List of feature classes (change to your desired feature class names)
feature_classes = ["parcels_corner", "parcels_dimension", "LINE_AMLAK", "Parcels"]

# Define the common query expression (change to your desired query)
query_expression = "parcel_no = 2"

# Loop through each feature class and apply the definition query
for feature_class in feature_classes:
# Get the existing layer
layer = arcpy.management.MakeFeatureLayer(feature_class, f"{feature_class}_Layer", query_expression)
print(f"Definition query applied to {feature_class}.")

# Print a success message
print("Definition queries applied to all specified feature classes.")

i want to know how to apply the same code but over the current layers not with generation of a copy of each layer

[Amir-Sarrafzadeh-Arasi]

Dear marklee,

I hope you are doing well,

you just need to delete the "_layer" from your second element in the arcpy.management.MakeFeatureLayer function.

# Set the workspace (change to your desired geodatabase or folder)
arcpy.env.workspace = r"D:\abo-ammar\geoParcel.gdb"

# List of feature classes (change to your desired feature class names)
feature_classes = ["parcels_corner", "parcels_dimension", "LINE_AMLAK", "Parcels"]

# Define the common query expression (change to your desired query)
query_expression = "parcel_no = 2"

# Loop through each feature class and apply the definition query
for feature_class in feature_classes:
# Get the existing layer
layer = arcpy.management.MakeFeatureLayer(feature_class, f"{feature_class}", query_expression)
print(f"Definition query applied to {feature_class}.")

# Print a success message
print("Definition queries applied to all specified feature classes.")

Good luck