add alter

sqlTranslate/.idea/workspace.xml

@@ -6,6 +6,7 @@
   <component name="ChangeListManager">
     <list default="true" id="d8d12963-4777-48e3-9669-309cf5e41d60" name="更改" comment="revise">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
+      <change beforePath="$PROJECT_DIR$/src/main/java/Parser/AST/AlterTable/AlterModifyColumnNode.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/Parser/AST/AlterTable/AlterModifyColumnNode.java" afterDir="false" />
       <change beforePath="$PROJECT_DIR$/src/main/java/Parser/OracleParser.java" beforeDir="false" afterPath="$PROJECT_DIR$/src/main/java/Parser/OracleParser.java" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -104,13 +105,6 @@
       <option name="presentableId" value="Default" />
       <updated>1723106789329</updated>
     </task>
-    <task id="LOCAL-00005" summary="add functions">
-      <created>1724145125754</created>
-      <option name="number" value="00005" />
-      <option name="presentableId" value="LOCAL-00005" />
-      <option name="project" value="LOCAL" />
-      <updated>1724145125754</updated>
-    </task>
     <task id="LOCAL-00006" summary="revise">
       <created>1724164698153</created>
       <option name="number" value="00006" />
@@ -447,7 +441,14 @@
       <option name="project" value="LOCAL" />
       <updated>1726198053495</updated>
     </task>
-    <option name="localTasksCounter" value="54" />
+    <task id="LOCAL-00054" summary="revise">
+      <created>1726209430618</created>
+      <option name="number" value="00054" />
+      <option name="presentableId" value="LOCAL-00054" />
+      <option name="project" value="LOCAL" />
+      <updated>1726209430619</updated>
+    </task>
+    <option name="localTasksCounter" value="55" />
     <servers />
   </component>
   <component name="Vcs.Log.Tabs.Properties">

sqlTranslate/src/main/java/Parser/AST/AlterTable/AlterModifyColumnNode.java

@@ -3,6 +3,7 @@ package Parser.AST.AlterTable;
 import Lexer.Token;
 import Parser.AST.ASTNode;
 
+import java.util.ArrayList;
 import java.util.List;
 
 public class AlterModifyColumnNode extends ASTNode {
@@ -44,4 +45,13 @@ public class AlterModifyColumnNode extends ASTNode {
             child.visit(child, queryString);
         }
     }
+
+    public void ResetTokensbyNameTypeConstraint() {
+        List <Token> tokens = new ArrayList<>();
+        tokens.add(new Token(Token.TokenType.KEYWORD, "MODIFY"));
+        tokens.add(columnName);
+        tokens.add(columnType);
+        tokens.add(new Token(Token.TokenType.SYMBOL, ";"));
+        setTokens(tokens);
+    }
 }

sqlTranslate/src/main/java/Parser/OracleParser.java

@@ -1116,19 +1116,70 @@ public class OracleParser {
             else if (parseTokens.get(i).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i).getValue().equalsIgnoreCase("MODIFY")) {
                 tokens = new ArrayList<>();
                 tokens.add(parseTokens.get(i));
+                AlterModifyColumnNode childNode = new AlterModifyColumnNode();
                 for (int j = i + 1; j < parseTokens.size(); j++) {
+                    if (j == i + 1) {
+                        childNode.setColumnName(parseTokens.get(j));
+                    }
+                    if (j == i + 2) {
+                        childNode.setColumnType(parseTokens.get(j));
+                    }
+                    if (j > i + 3) {
+                        try {
+                            throw new ParseFailedException("Parse failed:There exists syntex error in the input sql!");
+                        }
+                        catch (ParseFailedException e) {
+                            e.printStackTrace();
+                        }
+                        break;
+                    }
                     if (parseTokens.get(j).hasType(Token.TokenType.SYMBOL) && parseTokens.get(j).getValue().equalsIgnoreCase(";")) {
                         i = j - 1;
                         break;
                     }
                     tokens.add(parseTokens.get(j));
                 }
-                ASTNode childNode = new AlterModifyColumnNode(tokens);
+                childNode.setTokens(tokens);
                 currentNode.addChild(childNode);
                 currentNode = childNode;
             }
             else if (parseTokens.get(i).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i).getValue().equalsIgnoreCase("RENAME")) {
-
+                if (i + 1 < parseTokens.size() && parseTokens.get(i + 1).hasType(Token.TokenType.KEYWORD) && parseTokens.get(i + 1).getValue().equalsIgnoreCase("COLUMN")) {
+                    tokens = new ArrayList<>();
+                    tokens.add(parseTokens.get(i));
+                    for (int j = i + 1; j < parseTokens.size(); j++) {
+                        if (parseTokens.get(j).hasType(Token.TokenType.SYMBOL) && parseTokens.get(j).getValue().equalsIgnoreCase(";")) {
+                            i = j - 1;
+                            break;
+                        }
+                        tokens.add(parseTokens.get(j));
+                    }
+                    ASTNode childNode = new AlterRenameColumnNode(tokens);
+                    currentNode.addChild(childNode);
+                    currentNode = childNode;
+                }
+                else if (i + 1 < parseTokens.size() && parseTokens.get(i + 1).hasType(Token.TokenType.IDENTIFIER)) {
+                    tokens = new ArrayList<>();
+                    tokens.add(parseTokens.get(i));
+                    for (int j = i + 1; j < parseTokens.size(); j++) {
+                        if (parseTokens.get(j).hasType(Token.TokenType.SYMBOL) && parseTokens.get(j).getValue().equalsIgnoreCase(";")) {
+                            i = j - 1;
+                            break;
+                        }
+                        tokens.add(parseTokens.get(j));
+                    }
+                    ASTNode childNode = new AlterRenameTableNode(tokens);
+                    currentNode.addChild(childNode);
+                    currentNode = childNode;
+                }
+                else {
+                    try {
+                        throw new ParseFailedException("Parse failed:There exists syntex error in the input sql!");
+                    }
+                    catch (ParseFailedException e) {
+                        e.printStackTrace();
+                    }
+                }
             }
             else if (parseTokens.get(i).hasType(Token.TokenType.SYMBOL) && parseTokens.get(i).getValue().equals(";")) {
                 tokens = new ArrayList<>();