Metadata From Data Catalog Schema
This is supported by JDBC Java DataBase Connectivity. This is an application programming interface (API) for the Java programming language, which defines how a client may access a database. V3
Third-party tools accessing the GigaSpaces data grid can now automatically access the detailed metadata schema for the Spaces and Objects in the grid.
Tables
information_schema_catalog_name
table
The information_schema_catalog_name
table has the following information:
Column | Format | Contents | Notes |
---|---|---|---|
catalog_name | varchar | Space Where GigaSpaces data is stored. It is the logical cache that holds data objects in memory and might also hold them in layered in tiering. Data is hosted from multiple SoRs, consolidated as a unified data model. name |
tables
table
The tables
table has the following information:
Column | Format | Contents | Notes |
---|---|---|---|
table_catalog | varchar | Space name | |
table_schema | varchar | Package where the table is defined. Value is "public" if the table was defined manually, through DDL Data Definition Language (DDL) is a subset of SQL. It is a language for describing data and its relationships in a database. DDL changes the structure of the table like creating a table, deleting a table, altering a table, etc. Example DDL commands: CREATE, ALTER, DROP, TRUNCATE. commands |
|
table_name | varchar | ||
table_type | varchar | "TABLE" or "VIEW" | "TABLE" in 16.2 |
last_update | timestamp | Date that the table schema was last changed | null in 16.2 |
created | timestamp | Date that the table was created | null in 16.2 |
columns
table
The columns
table has the following information:
Column | Format | Contents | Notes |
---|---|---|---|
table_catalog | varchar | Space name | |
table_schema | varchar | Package where the table is defined, or "public" if the table was defined manually, through DDL commands | |
table_name | varchar | ||
column_name | varchar | "TABLE" or "VIEW" | "TABLE" in 16.2 |
ordinal_position | integer | Column number | |
column_default | varchar | Default value for column | |
is_nullable | boolean | true or false |
|
data_type | varchar |