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# OracleSQL model structure generator
This folder houses the implementation of the OracleSQL model structure generator based on the ANTLR4 parser.
This file documents the current features and bugs of this model structure generator.
In the below table, the following notation is used:
- ✅: Supported.
- 🤷🏼♂️: Invalid SQL in OracleSQL.
- ❓: Valid SQL in OracleSQL, the generator can still generate output but it ignores this syntax.
- ❌: Valid SQL in OracleSQL, but the generator fails to generate any output.
| SQL syntax | OracleSQL |
|-------------------------------|---------------|
| 1. INSERT statement | |
| 1.a. Basic INSERT ... VALUES | ✅ |
| 1.b. INSERT ... SELECT | ❌ |
| 1.c. Multi-row INSERT | 🤷🏼♂️ |
| 1.d. Common table expression (WITH clause) | ❌ |
| 1.e. Target table alias | ❌ |
| 1.f. INSERT ... RETURNING/INSERT … OUTPUT | ❓ |
| 1.g. INSERT ... ON CONFLICT (UPSERT)/INSERT ... ON DUPLICATE KEY/INSERT … IGNORE | 🤷🏼♂️ |
| 1.h. INSERT OVERWRITE | 🤷🏼♂️ |
| 1.i. Multi-table INSERT | ❌ |
| 1.j. Conditional multi-table INSERT (WHEN/FIRST/ALL) | ❌ |
| 6. CREATE TABLE | |
| 6.a. Basic syntax | ✅ |
| 6.a.i. Enumerated data type | 🤷🏼♂️ (but supported in Oracle 23ai) |
| 6.a.ii. Data type of the form name(...) | ✅ |
| 6.a.iii. Data type of the form name\[...\] | 🤷🏼♂️ |
| 6.b. PRIMARY KEY | |
| 6.b.i. Inline PRIMARY KEY | ✅ |
| 6.b.ii. Out-of-line PRIMARY KEY | ✅ |
| 6.b.iii. Composite PRIMARY KEY | ✅ |
| 6.b.iv. Named PRIMARY KEY | ✅ |
| 6.b.v. Other options (deferrable, etc.) | ❓ (ignore the options) |
| 6.c. FOREIGN KEY | |
| 6.c.i. Inline FOREIGN KEY | ✅ |
| 6.c.ii. Out-of-line FOREIGN KEY | ✅ |
| 6.c.iii. Composite FOREIGN KEY | ✅ |
| 6.c.iv. Named FOREIGN KEY | ✅ |
| 6.c.v. ON UPDATE | 🤷🏼♂️ |
| 6.c.vi. ON DELETE | ✅ |
| 6.c.vii. Other options (deferrable, etc.) | ❓ |
| 6.d. UNIQUE | |
| 6.d.i. Inline UNIQUE | ✅ |
| 6.d.ii. Out-of-line UNIQUE | ✅ |
| 6.d.iii. Composite UNIQUE | ✅ |
| 6.d.iv. Named UNIQUE | ✅ |
| 6.d.v. Other options (deferrable, etc) | ❓ |
| 6.d.vi. NULLS NOT DISTINCT | ❓ |
| 6.d.vii. UNIQUE KEY/UNIQUE INDEX | 🤷🏼♂️ |
| 6.e. CHECK | |
| 6.e.i. Inline CHECK | ✅ |
| 6.e.ii. Out-of-line CHECK | ✅ |
| 6.e.iii. Named CHECK | ✅ |
| 6.e.iv. Other options (enforcement control, etc.) | ❓ |
| 6.f. DEFAULT values | |
| 6.f.i. Inline DEFAULT | ✅ |
| 6.f.ii. Out-of-line DEFAULT | 🤷🏼♂️ |
| 6.f.iii. Functional DEFAULT | ✅ |
| 6.f.iv. Named DEFAULT | 🤷🏼♂️ |
| 6.g. NULL | ✅ |
| 6.h. NOT NULL | |
| 6.h.i. Inline NOT NULL | ✅ |
| 6.h.ii. Out-of-line NOT NULL | 🤷🏼♂️ |
| 6.h.iii. Named NOT NULL | 🤷🏼♂️ |
| 6.h.iv. Other options (deferrable, etc.) | ❓ |
| 6.i. Indexes | |
| 6.i.i. Inline indexes | 🤷🏼♂️ |
| 6.i.ii. Out-of-line indexes | ✅ |
| 6.i.iii. Named indexes | ✅ |
| 6.i.iv. Multi-column indexes | ✅ |
| 6.i.v. CLUSTERED/NONCLUSTERED | 🤷🏼♂️ |
| 6.i.vi. FULLTEXT | 🤷🏼♂️ |
| 6.i.vii. SPATIAL | 🤷🏼♂️ |
| 6.i.viii. Other options | ❓ |
| 6.i.ix. USING HASH/BTREE | 🤷🏼♂️ |
| 6.j. Auto-increment | |
| 6.j.i. AUTO_INCREMENT | 🤷🏼♂️ |
| 6.j.ii. SERIAL/BIG SERIAL | 🤷🏼♂️ |
| 6.j.iii. IDENTITY | 🤷🏼♂️ |
| 6.j.iv. Increment range | ❓ |
| 6.j.v. GENERATED ... AS IDENTITY | ✅ |
| 6.k. Computed column | ❓ |
| 6.l. TEMPORARY tables | ❓ (No indication of temporary table) |
| 6.m. CREATE TABLE AS SELECT (CTAS) | ❌ |
| 6.n. Comments | |
| 6.n.i. Table comments | ✅ |
| 6.n.ii. Column comments | ✅ |
| 6.o. Other options (inheritance, UNLOGGED, partition, collate, etc.) | ❓ |
| 7. ALTER TABLE | |
| 7.a. ADD COLUMN | |
| 7.a.i. Type | ❌ |
| 7.a.ii. DEFAULT | ❌ |
| 7.a.iii. NOT NULL | ❌ |
| 7.a.iv. NULL | ❌ |
| 7.a.v. CHECK | ❌ |
| 7.a.vi. UNIQUE | ❌ |
| 7.a.vii. FOREIGN KEY | ❌ |
| 7.a.viii. PRIMARY KEY | ❌ |
| 7.a.ix. AUTOINCREMENT/SERIAL/BIGSERIAL/IDENTITY/GENERATED AS IDENTITY | ❌ |
| 7.a.x. Computed column | ❌ |
| 7.b. DROP COLUMN | ❌ |
| 7.c. ALTER COLUMN / MODIFY COLUMN | |
| 7.c.i. COMMENT | 🤷🏼♂️ |
| 7.c.ii. Others | ❌ |
| 7.d. RENAME COLUMN | ❌ |
| 7.e. ADD CONSTRAINT | |
| 7.e.i. DEFAULT | ✅ |
| 7.e.ii. NOT NULL | ✅ |
| 7.e.iii. NULL | ✅ |
| 7.e.iv. named CHECK | ✅ |
| 7.e.v. unnamed CHECK | ✅ |
| 7.e.vi. named UNIQUE | ✅ |
| 7.e.vii. unnamed UNIQUE | ✅ |
| 7.e.viii. named PRIMARY KEY | ✅ |
| 7.e.ix. unnamed PRIMARY KEY | ✅ |
| 7.e.x. named FOREIGN KEY | ✅ |
| 7.e.xi. unnamed FOREIGN KEY | ✅ |
| 7.g. DROP CONSTRAINT | ❌ |
| 7.h. ALTER CONSTRAINT | ❌ |
| 7.i. RENAME TABLE | ❌ |
| 7.j. SET SCHEMA | ❌ |
| 7.k. ALTER INDEX | 🤷🏼♂️ |
| 7.l. DROP INDEX | 🤷🏼♂️ |
| 7.m. SET COMMENT/COMMENT = | 🤷🏼♂️ |
| 7.n. ADD INDEX | 🤷🏼♂️ |
| 8. DROP TABLE | |
| 8.a. Basic syntax | ❌ |
| 9. CREATE INDEX | |
| 9.a. Basic syntax | ✅ |
| 9.b. Composite index | ✅ |
| 9.c. Named index | ✅ |
| 9.d. UNIQUE index | ✅ |
| 9.e. Partial/Filtered index | ❓ (ignore) |
| 9.f. BTREE/HASH/GIST/BRIN/… index | 🤷🏼♂️ |
| 9.g. INCLUDE columns | 🤷🏼♂️ |
| 9.h. CLUSTERED/NONCLUSTERED | 🤷🏼♂️ |
| 9.i. Functional index | ✅ |
| 9.j. FULLTEXT/SPATIAL index | 🤷🏼♂️ |
| 9.k. COLLATE | ❓ |
| 9.l. COMMENT | ❓ |
| 9.m. NULLS LAST/FIRST | 🤷🏼♂️ |
| 9.n. ASC/DESC | ❓ |
| 10. DROP INDEX | |
| 10.a. Basic syntax | ❌ |
| 11. ALTER INDEX | |
| 11.a. RENAME | ❌ |
| 11.b. ALTER COLUMN | 🤷🏼♂️ |
| 12. CREATE VIEW | |
| 12.a. Basic syntax | ❌ |
| 13. Comment | |
| 13.a. Table comments | ✅ |
| 13.b. Column comments | ✅ |
| 13.c. COMMENT … IS NULL | ✅ |
| 13.d. Index comments | ❌ |