diff --git a/.idea/php-test-framework.xml b/.idea/php-test-framework.xml
new file mode 100644
index 0000000..c092999
--- /dev/null
+++ b/.idea/php-test-framework.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="PhpTestFrameworkVersionCache">
+    <tools_cache>
+      <tool tool_name="PHPUnit">
+        <cache>
+          <versions>
+            <info id="Local/vendor/autoload.php" version="9.6.20" />
+          </versions>
+        </cache>
+      </tool>
+    </tools_cache>
+  </component>
+</project>
\ No newline at end of file
diff --git a/nur_bin/sqlite-storage.php b/nur_bin/sqlite-storage.php
index f73c5ce..7b6d24f 100755
--- a/nur_bin/sqlite-storage.php
+++ b/nur_bin/sqlite-storage.php
@@ -19,12 +19,15 @@ Application::run(new class extends Application {
     "merge" => parent::ARGS,
     "purpose" => "gestion d'un capacitor sqlite",
     "usage" => [
-      "-f DBFILE -c CHANNEL [--query] key=value...",
-      "-f DBFILE -c CHANNEL --sql-create",
+      "-f DBFILE -n CHANNEL [--query] key=value...",
+      "-f DBFILE -n CHANNEL --sql-create",
     ],
     ["-f", "--dbfile", "args" => 1,
       "help" => "chemin vers la base de données",
     ],
+    ["-n", "--name", "args" => 1,
+      "help" => "nom du canal de données. table-name et channel-class sont chargés depuis la base de données",
+    ],
     ["-t", "--table-name", "args" => 1,
       "help" => "nom de la table porteuse du canal de données",
     ],
@@ -41,6 +44,8 @@ Application::run(new class extends Application {
 
   protected ?string $dbfile = null;
 
+  protected ?string $name = null;
+
   protected ?string $tableName = null;
 
   protected ?string $channelClass = null;
@@ -57,12 +62,25 @@ Application::run(new class extends Application {
     $dbfile = $this->dbfile;
     if ($dbfile === null) self::die("Vous devez spécifier la base de données");
     if (!file_exists($dbfile)) self::die("$dbfile: fichier introuvable");
+    $storage = new SqliteStorage($dbfile);
 
-    if ($this->channelClass !== null) {
-      $channelClass = str_replace("/", "\\", $this->channelClass);
+    $name = $this->name;
+    $channelClass = $this->channelClass;
+    $tableName = $this->tableName;
+    if ($name !== null) {
+      $row = $storage->db()->one([
+        "select from _channels",
+        "where" => ["name" => $name],
+      ]);
+      if ($row === null) self::die("$name: nom de canal de données introuvable");
+      if ($row["class"] !== "class@anonymous") $channelClass = $row["class"];
+      else $tableName = $row["table_name"];
+    }
+    if ($channelClass !== null) {
+      $channelClass = str_replace("/", "\\", $channelClass);
       $channel = new $channelClass;
-    } elseif ($this->tableName !== null) {
-      $channel = new class($this->tableName) extends CapacitorChannel {
+    } elseif ($tableName !== null) {
+      $channel = new class($tableName) extends CapacitorChannel {
         function __construct(?string $name=null) {
           parent::__construct($name);
           $this->tableName = $name;
@@ -71,8 +89,6 @@ Application::run(new class extends Application {
     } else {
       self::die("Vous devez spécifier le canal de données");
     }
-
-    $storage = new SqliteStorage($dbfile);
     $capacitor = new Capacitor($storage, $channel);
 
     switch ($this->action) {
diff --git a/src/db/CapacitorChannel.php b/src/db/CapacitorChannel.php
index a3d6297..e2a1c88 100644
--- a/src/db/CapacitorChannel.php
+++ b/src/db/CapacitorChannel.php
@@ -27,7 +27,7 @@ class CapacitorChannel {
     if ($name !== null) {
       $name = strtolower($name);
       if ($tableName === null) {
-        $tableName = str_replace("-", "_", $tableName) . "_channel";
+        $tableName = str_replace("-", "_", $name) . "_channel";
       }
     } else {
       $name = static::class;
diff --git a/src/db/CapacitorStorage.php b/src/db/CapacitorStorage.php
index 46cde2e..7e1dca4 100644
--- a/src/db/CapacitorStorage.php
+++ b/src/db/CapacitorStorage.php
@@ -154,10 +154,14 @@ EOT;
     return $this->_getCreateSql($this->getChannel($channel));
   }
 
+  protected function _afterCreate(CapacitorChannel $channel): void {
+  }
+
   protected function _create(CapacitorChannel $channel): void {
     $channel->ensureSetup();
     if (!$channel->isCreated()) {
       $this->db->exec($this->_createSql($channel));
+      $this->_afterCreate($channel);
       $channel->setCreated();
     }
   }
@@ -178,8 +182,12 @@ EOT;
     $this->_ensureExists($this->getChannel($channel));
   }
 
+  protected function _beforeReset(CapacitorChannel $channel): void {
+  }
+
   /** supprimer le canal spécifié */
   function _reset(CapacitorChannel $channel, bool $recreate=false): void {
+    $this->_beforeReset($channel);
     $this->db->exec([
       "drop table if exists",
       $channel->getTableName(),
diff --git a/src/db/_private/Tinsert.php b/src/db/_private/Tinsert.php
index edb9a22..2f46767 100644
--- a/src/db/_private/Tinsert.php
+++ b/src/db/_private/Tinsert.php
@@ -22,8 +22,8 @@ trait Tinsert {
     if (($prefix = $query["prefix"] ?? null) !== null) $sql[] = $prefix;
 
     ## insert
-    self::consume('insert\s*', $tmpsql);
-    $sql[] = "insert";
+    self::consume('(insert(?:\s+or\s+(?:ignore|replace))?)\s*', $tmpsql, $ms);
+    $sql[] = $ms[1];
 
     ## into
     self::consume('into\s*', $tmpsql);
diff --git a/src/db/sqlite/SqliteStorage.php b/src/db/sqlite/SqliteStorage.php
index daa8839..92f77fc 100644
--- a/src/db/sqlite/SqliteStorage.php
+++ b/src/db/sqlite/SqliteStorage.php
@@ -28,6 +28,39 @@ class SqliteStorage extends CapacitorStorage {
     return self::format_sql($channel, $query->getSql());
   }
 
+  protected function _afterCreate(CapacitorChannel $channel): void {
+    $db = $this->db;
+    $db->exec([
+      "create table if not exists",
+      "table" => "_channels",
+      "cols" => [
+        "name" => "varchar primary key",
+        "table_name" => "varchar",
+        "class" => "varchar",
+      ],
+    ]);
+    $db->exec([
+      "insert",
+      "into" => "_channels",
+      "values" => [
+        "name" => $channel->getName(),
+        "table_name" => $channel->getTableName(),
+        "class" => get_class($channel),
+      ],
+      "suffix" => "on conflict do nothing",
+    ]);
+  }
+
+  protected function _beforeReset(CapacitorChannel $channel): void {
+    $this->db->exec([
+      "delete",
+      "from" => "_channels",
+      "where" => [
+        "name" => $channel->getName(),
+      ],
+    ]);
+  }
+
   function _exists(CapacitorChannel $channel): bool {
     $tableName = $this->db->get([
       "select name from sqlite_schema",