diff --git a/PostgreSQL/build/.gitkeep b/PostgreSQL/build/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/PostgreSQL/generate_data.py b/PostgreSQL/generate_data.py
index 18956a9..dd7a92c 100644
--- a/PostgreSQL/generate_data.py
+++ b/PostgreSQL/generate_data.py
@@ -44,7 +44,7 @@ def random_element(pathFile : str) -> str:
     """
     with open(pathFile, 'r') as file:
         csvList           : list = list(csv.reader(file))
-        random_index_line : int = random.randint(0, len(csvList))
+        random_index_line : int = random.randint(1, len(csvList) - 1)
         return "" if ( csvList[random_index_line] == [] ) \
                   else csvList[random_index_line][0]
 
@@ -124,7 +124,7 @@ def generate_line_etre() -> str:
     idPiece     : str = random_element(pathIntegers)
     idMarque    : str = random_element(pathIntegers)
 
-    return construct_line(idBoite, idMarque)
+    return construct_line(idPiece, idMarque)
 
 def generate_line_etre_complexe() -> str:
     idPiece     : str = random_element(pathIntegers)
@@ -259,17 +259,24 @@ def convert_table_to_sql(pathFile : str, nameTable : str) -> None:
 
     Write the code in append mode to the file called `insert.sql`.
     """
-    fileSql = open("insert.sql", "a") # append mode.
+    fileSql = open("insert.sql", 'a') # append mode.
 
-    fileSql.write("INSERT INTO " + nameTable + "VALUES\n")
+    fileSql.write("INSERT INTO " + nameTable + " VALUES\n")
 
     with open(pathFile, "r") as fileData:
-        fileSql.writeLines(fileData.readLines())
+        fileSql.writelines(fileData.readlines())
 
-    fileSql.write(";\n")
-    fileSql.write("\n")
     fileSql.close()
 
+    # Replace last ',' by ';'.
+    with open("insert.sql", 'rb+') as fileSql:
+        fileSql.seek(-2, 2)
+        fileSql.truncate()
+
+    with open("insert.sql", 'a') as fileSql:
+        fileSql.write(";\n")
+        fileSql.write("\n")
+
 ###############################################################################
 
 dictTables : dict = {
@@ -300,20 +307,27 @@ dictTables : dict = {
 
 ###############################################################################
 
-if __name__ == '__main__':
-    fileSql = open("insert.sql", "w+")
-
-    arrayNameTables : list = dictTables.keys()
-    fileSql.write("TRUNCATE " + ', '.join(arrayNameTables) + ";\n")
-    fileSql.write("\n")
-
-
-
-
-
-
-
-    fileSql.close()
+def givePathFile(nameTable : str) -> str:
+    repertory : str = "build/"
+    return repertory + nameTable + ".data"
+
+###############################################################################
+
+if __name__ == '__main__':
+    # Uncomment if you want to generate data.
+    # for nameTable in dictTables:
+    #     store_table(1000, givePathFile(nameTable), dictTables[nameTable])
+
+    fileSql = open("insert.sql", 'w+')
+
+    fileSql.write("TRUNCATE " + ', '.join(dictTables) + ";\n")
+    fileSql.write("\n")
+    fileSql.close()
+
+    with open("insert.sql", 'a') as fileSql:
+        for nameTable in dictTables:
+            convert_table_to_sql(givePathFile(nameTable), nameTable)
+
 
 ###############################################################################