The global IT and data landscape is evolving rapidly, driven by cloud transformation, stricter data governance requirements, and the growing demand for performance optimization. In this environment, many organizations are actively seeking alternatives to costly, vendor-locked database platforms, fueling the growing shift away from Oracle.
Tibero, a highly compatible and cost-efficient enterprise DBMS, has emerged as a compelling alternative to Oracle, offering robust technical support, proven enterprise reliability, and competitive total cost of ownership (TCO).
Tibero: Oracle Alternative DBMS
Tibero has a proven track record of over 1,400 successful Oracle-to-Tibero migrations, demonstrating its high level of compatibility with Oracle environments. Tibero’s compatibility ensures that Oracle users can transition with minimal application changes, making it an ideal replacement option.
Data Type
Tibero supports standard SQL data types defined by ANSI and ISO standards, along with Oracle-compatible types to ensure seamless migration.
| Category | Data Types | Descriptions |
| Character | CHAR, VARCHAR, VARCHAR2, NCHAR, NVARCHAR, NVARCHAR2, RAW, LONG, LONG RAW | Data type for representing character strings |
| Numeric | NUMBER, INTEGER, FLOAT, BINARY_FLOAT, BINARY_DOUBLE | Data type for storing integers or floating-point numbers |
| Date/Time | DATE, TIME, TIMESTAMP, TIMESTAMP WITH TIME ZONE, TIMESTAMP WITH LOCAL TIME ZONE | Data type for storing date and time values |
| Interval | INTERVAL YEAR TO MONTH, INTERVAL DAY TO SECOND | Data type for storing intervals between dates and times |
| LOB (Large Object) | CLOB, BLOB, XMLTYPE, JSON | Large object data type, designed to store very large data in Tibero |
| Internal | ROWID | Automatically assigned data type that Tibero generates for each row, even if the user does not explicitly declare it |
| User-Defined | tbPSM | User-defined collection type for custom data structures |
Object Support
Tibero fully supports key database objects that Oracle users rely on, ensuring smooth migration and compatibility.
| Object | Type | Oracle | Tibero |
| Table | Non-Partitioned Table |  | |
| Partitioned Table(Range, List, Hash, Composite) | | | |
| View | READ-ONLY View, UPDATABLE View | | |
| M-View | | | |
| Index | B-tree. Reverse Key, Function Based | | |
| Global, Local Partitioned | | | |
| Unique/Non-Unique, Composite | | | |
| IOT | Non-Partitioned | | |
| Partitioned | | | |
| Constraint | Primary, Foreign, NULL, NOT NULL, UNIQUE, CHECK | | |
| Other Objects | Synonym, Trigger, Sequence, Package, External Table | | |
Schema Management Features
Tibero provides a comprehensive set of schema management capabilities, including online schema changes, partition management, and space management.
| Category | Feature | Oracle | Tibero |
| Tablespace | CREATE, RENAME, DROP, ON/OFFLINE, REAL ONLY | | |
| Data File | CREATE, ADD, RENAME, RESIZE, DROP | | |
| Table | CREATE, RENAME, TRUNCATE, DROP, MONITORING | | |
| Index | CREATE, RENAME, Online REBUILD, COALESCE, DROP, MONITORING | | |
| Column | ADD, DROP, RENAME, Modify TYPE/LENGTH/DEFAULT | | |
| Partition | ADD, COALESCE, DROP, SPLIT, MERGE, TRUNCATE, RENAME, EXCHANGE, MODIFY, MOVE, REBUILD | | |
| Others | Online Reorganization (Shrink, Coalesce) | | |
| Data Compression | | |
SQL Compatibility & Extended Syntax
Tibero supports a wide range of SQL constructs, including Oracle-specific extensions, ensuring minimal changes to SQL code during migration.
| Object | Descriptions | Oracle | Tibero |
| Joins | Equi, Anti, Semi, Self, Cartesian, Inner, Outer, (+) | | |
| Subqueries | In-Line View, Nested Query | | |
| Conditional Expressions | ANY, SOME, ALL, BETWEEN, EXISTS, IN, NULL, LIKE, REGXP_LIKE | | |
| Set Operations | INTERSECT, UNION, UNION ALL, MINUS, EXCEPT | | |
| Group Functions | GROUP BY, HAVING, SELECT DISTINCT, GROUPING, GROUPING SETS | | |
| Analytical Functions | OVER (PARTITION BY ~ ORDER BY ~ ROWS BETWEEN ~ AND ~) | | |
| Read Consistency | Read Committed(default), Select for update, Serializable | | |
| Others | Hierarchical Queries (Start with ~ Connect by ~) Parallel (Insert Into ~ Select ~) Dual Table, CALL, Merge, Create Table As Select ~ | | |
Built-in Function Support
Tibero supports standard SQL syntax, Oracle-specific extended syntax, and compatibility with over 200 built-in functions, ensuring a smooth transition and enhanced convenience for existing Oracle users.
| Category | Description |
| Group | AVG, COUNT, MAX, MIN, STDDEV, SUM, VARIANCE |
| Numeric | ABS, ACOS, ASIN, ATAN, CEIL, COS, COSH, EXP, FLOOR, GREATEST, LEAST, LN, LOG, MOD, POWER, SIGN, SIN, SINH, SQRT, TAN, TANH, TRUNC |
| Character | ASCII, CHR, CONCAT, INITCAP, INSTR, INSTRB, LENGTH, LENGTHB, LOWER, LPAD, LTRIM, NLS_INITCAP, NLS_LOWER, NLS_UPPER, NLSSORT, REPLACE, RPAD, RTRIM, SUBSTR, SUBSTRB, TRANSLATE, TRIM, UPPER |
| Date/Time | ADD_MONTH, EXTRACT, LAST_DAY, NEXT_DAY, ROUND, SYSDATE, +, – CALCULATION |
| Others | CASE, DECODE, DUMP, NVL, NVL2, ROWNUM, RANK, LEAD/LAG, ROW_NUMBER, PIVOT/UNPIVOT, CUBE/ROLLUP |
PL/SQL Support
Tibero supports PL/SQL procedural programming with high compatibility to Oracle’s PL/SQL syntax.
| Feature | Description | Oracle | Tibero |
| Blocks | BEGIN ~ END, DECLARE, EXCEPTION | | |
| Conditional Statements | IF ~ THEN ~ ELSE, ELSE IF CASE ~ WHEN ~ | | |
| Loop Statements | LOOP, FOR LOOP, WHILE LOOP EXIT, EXIT WHEN | | |
| Cursors | CURSOR, OPEN, FETCH, CLOSE | | |
| Dynamic SQL | EXECUTE IMMEDIATE | | |
| Error Handling | CASE_NOT_FOUND, NO_DATA_FOUND, ZERO_DIVIDE etc. | | |
| RAISE ERROR, RAISE_APPLICATION_ERROR | | | |
| Collections | Methods : VARRAY, Nested Table, Index-by Table COUNT, DELETE, EXISTS | | |
| Others | GOTO, NULL, PROCEDURE, FUNCTION, PACKAGE, TRIGGER | | |
Hint Support
Tibero supports over 45 optimizer hints, allowing developers to fine-tune execution plans.
| Category | Hint |
| Goals | ALL_ROWS, FIRST_ROWS |
| Index Access Operation | INDEX, NO_INDEX, INDEX_ASC, INDEX_DESC, INDEX_FS, NO_INDEX_FFS, FULL |
| Join Orders | ORDERED, LEADING |
| Join Access Operation | USE_NL, USE_NL_WITH_INDEX, NO_USE_NL, USE_MERGE, NO_USE_MERGE, USE_HASH, NO_USE_HASH |
| Parallel Execution | PARALLEL, NO_PARALLEL |
| Query Transformation | UNNEST, NO_UNNEST, REWRITE, NO_REWRITE, NO_MERGE |
| Other Hints | APPEND, NOAPPEND, PUSH_PRED, NO_PUSH_PRED, PUSH_SUBQ, CURSOR_SHARING_EXACT, DYNAMIC_SAMPLING, QB_NAME, PQ_DISTRIBUTE, ROWID |
Tibero vs. Oracle: Core Feature Comparison
Tibero delivers enterprise-grade performance, availability, and manageability, fully comparable to Oracle’s capabilities.
| Feature | Tibero | Oracle | |
| Multi-Version Concurrency Control (MVCC) | | | |
| Row-Level Locking | | | |
| Lock Escalation Prevention | | | |
| B-Tree Index | | | |
| Index Range Scan on Encrypted Columns | |  | |
| OLTP Compression | | | |
| System Monitoring View | | | |
| SQL Trace | | | |
| Complex Transaction Support | | | |
| Partitioning | Range | | |
| List | | | |
| Hash | | | |
| Composite | | | |
| Auto Crash Recovery | | | |
| Log Mirroring | | | |
| Online Backup | | | |
| Multi-node parallel recovery | | | |
| Zero Downtime (Active-Active Cluster) | (Tibero TAC) | (Oracle RAC) | |
| Disaster Recovery (Active-Standby Cluster) | (Tibero TSC) | (Oracle DataGuard) | |
| Online DDL Operation | | | |
Why Tibero
Tibero offers a powerful combination of Oracle compatibility, performance, cost efficiency, and robust technical support. When choosing a DBMS, organizations must consider not only features, but also total cost of ownership (TCO), operational stability, and ease of maintenance. Tibero strikes the right balance, making it a trusted choice for enterprises, government agencies, and mid-sized companies alike.
With proven performance across both on-premise and cloud environments, Tibero continuously evolves to meet the needs of modern IT landscapes.
