Chemy1220
/
examples
forked from opengaussexamples/examples
0
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

add some comments

This commit is contained in:
XudongXie 2024-09-10 23:18:30 +08:00
parent 1155fd3b42
commit f009be079a
1 changed files with 15 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
sqlTranslate/src/main/java/Parser/OracleParser.java
View File

@ -57,6 +57,9 @@ public class OracleParser {
}
}
/**
* CREATE TEMPORARY? TABLE _table ( _column _type [, _column _type]... ) [CONSTRAINT _constraint] [, _column _type [, _column _type]...]
*/
private ASTNode parseCreateTab(List<Token> parseTokens) {
List <Token> tokens = new ArrayList<>();
tokens.add(parseTokens.get(0));
@ -237,6 +240,9 @@ public class OracleParser {
return root;
}
/**
* INSERT INTO table_name VALUES (value1, value2, ...)
*/
private ASTNode parseInsert(List<Token> parseTokens) {
List <Token> tokens = new ArrayList<>();
tokens.add(parseTokens.get(0));
@ -304,7 +310,9 @@ public class OracleParser {
return root;
}
// Drop table
/**
* DROP TABLE _table (CASCADE CONSTRAINTS)?
*/
private ASTNode parseDrop(List<Token> parseTokens) {
List <Token> tokens = new ArrayList<>();
tokens.add(parseTokens.get(0));
@ -359,11 +367,17 @@ public class OracleParser {
return root;
}
/**
* SELECT DISTINCT? select_obj FROM select_tab where_clause? select_option? union_clause?
*/
private ASTNode parseSelect(List<Token> parseTokens) {
List <Token> tokens = new ArrayList<>();
tokens.add(parseTokens.get(0));
ASTNode root = new SelectNode(tokens);
ASTNode currentNode = root;
for(int i = 1; i < parseTokens.size(); i++) {
// match select_obj
}
return root;
}