public static List<String> buildAddColumnsSql(String dbName, String tableName,
            List<OceanBaseColumnInfo> columnList) {
        final List<String> columnInfoList = getColumnsInfo(columnList);
        final List<String> resultList = new ArrayList<>();
        final StringBuilder sqlBuilder = new StringBuilder();
        columnInfoList.forEach(columnInfo -> {
            sqlBuilder.append("ALTER TABLE ")
                    .append(dbName)
                    .append(".")
                    .append(tableName)
                    .append(" ADD COLUMN ")
                    .append(columnInfo)
                    .append(";");
            resultList.add(sqlBuilder.toString());
            sqlBuilder.delete(0, sqlBuilder.length());
        });
        return resultList;
    }
Build add columns SQL.

@param tableName OceanBase table name
@param columnList OceanBase column list {@link List}
@return add column SQL string list
inlong-manager/manager-service/src/main/java/org/apache/inlong/manager/service/resource/sink/oceanbase/OceanBaseSqlBuilder.java