Fixed hyperlinks

Author: jauhenis

answers/mysql_vs_postgresql.md

@@ -58,4 +58,4 @@ This page provides a comparison between MySQL and PostgreSQL, two of the most po
 | **Triggers** | Basic support | Advanced support (per-row, per-statement) |
 
 ---
-*Back to [MySQL & Databases](../questions/07-mysql-databases.mdx) or [PostgreSQL](../questions/08-postgresql.mdx)*
+*Back to [MySQL & Databases](../questions/08-mysql-databases.mdx) or [PostgreSQL](../questions/09-postgresql.mdx)*

answers/postgresql_complex_types.md

@@ -48,4 +48,4 @@ ALTER TYPE mood ADD VALUE 'excited' AFTER 'happy';
 - `jsonb`: Stores data in a decomposed binary format. It is slightly slower to input but significantly faster to process and supports indexing.
 
 ---
-*Back to [PostgreSQL](../questions/08-postgresql.mdx)*
+*Back to [PostgreSQL](../questions/09-postgresql.mdx)*

answers/postgresql_constraints.md

@@ -57,4 +57,4 @@ ALTER TABLE users ALTER COLUMN username SET NOT NULL;
 ```
 
 ---
-*Back to [PostgreSQL](../questions/08-postgresql.mdx)*
+*Back to [PostgreSQL](../questions/09-postgresql.mdx)*

answers/postgresql_data_types.md

@@ -49,4 +49,4 @@ The `boolean` type can have the state `true`, `false`, or `unknown` (represented
 - **XML:** `xml` for XML data.
 
 ---
-*Back to [PostgreSQL](../questions/08-postgresql.mdx)*
+*Back to [PostgreSQL](../questions/09-postgresql.mdx)*

answers/postgresql_relations.md

@@ -31,4 +31,4 @@ Returns only the rows that are present in both result sets.
 Returns rows from the first result set that are not present in the second.
 
 ---
-*Back to [PostgreSQL](../questions/08-postgresql.mdx)*
+*Back to [PostgreSQL](../questions/09-postgresql.mdx)*

docs/docs/answers/mysql_vs_postgresql.md

@@ -71,4 +71,4 @@ This page provides a comparison between MySQL and PostgreSQL, two of the most po
 
 ---
 
-_Back to [MySQL & Databases](../questions/07-mysql-databases.mdx) or [PostgreSQL](../questions/08-postgresql.mdx)_
+_Back to [MySQL & Databases](../questions/08-mysql-databases.mdx) or [PostgreSQL](../questions/09-postgresql.mdx)_

docs/docs/answers/postgresql_complex_types.md

@@ -56,4 +56,4 @@ ALTER TYPE mood ADD VALUE 'excited' AFTER 'happy';
 
 ---
 
-_Back to [PostgreSQL](../questions/08-postgresql.mdx)_
+_Back to [PostgreSQL](../questions/09-postgresql.mdx)_

docs/docs/answers/postgresql_constraints.md

@@ -64,4 +64,4 @@ ALTER TABLE users ALTER COLUMN username SET NOT NULL;
 
 ---
 
-_Back to [PostgreSQL](../questions/08-postgresql.mdx)_
+_Back to [PostgreSQL](../questions/09-postgresql.mdx)_

docs/docs/answers/postgresql_data_types.md

@@ -55,4 +55,4 @@ The `boolean` type can have the state `true`, `false`, or `unknown` (represented
 
 ---
 
-_Back to [PostgreSQL](../questions/08-postgresql.mdx)_
+_Back to [PostgreSQL](../questions/09-postgresql.mdx)_

docs/docs/answers/postgresql_relations.md

@@ -45,4 +45,4 @@ Returns rows from the first result set that are not present in the second.
 
 ---
 
-_Back to [PostgreSQL](../questions/08-postgresql.mdx)_
+_Back to [PostgreSQL](../questions/09-postgresql.mdx)_