Method Change

src/main/java/com/sql/parse/model/Change.java:8–11

(String oldExpr, String newExpr)

    private String newExpr;

    public Change(String oldExpr, String newExpr) {
        this.oldExpr = oldExpr;
        this.newExpr = newExpr;
    }

    public String getOldExpr() {
        return oldExpr;