Default compression for what kind of operations: The QUERY LOW, QUERY HIGH, ARCHIVE LOW, ARCHIVE HIGH, QUERY LOW ROW LEVEL LOCKING, QUERY HIGH ROW LEVEL LOCKING, ARCHIVE LOW ROW LEVEL LOCKING, ARCHIVE HIGH ROW LEVEL LOCKING, and NO ROW LEVEL LOCKING values are associated with Hybrid Columnar Compression, a feature of the Enterprise Edition of Oracle Database that is dependent on the underlying storage system. A. However, when you have a table with a large number of rows, using the DELETE statement to remove all data is not efficient.. Oracle introduced the TRUNCATE TABLE statement that allows you to delete all rows from a big table.. NONE: Data is not populated on any instance. List of tables in SPECIFIC schema. Here you can find the respective SQL command to list all tables in MySQL, PostgreSQL, Oracle, SQL Server, DB2, and SQLite. ALL_TABLES describes the relational tables accessible to the current user. Possible values: YES if the table was created with the CONTAINER_DATA clause, Indicates whether the In-Memory Column Store (IM column store) is enabled (ENABLED) or disabled (DISABLED) for this table. If a previous DROP TABLE operation failed, indicates whether the table is unusable (UNUSABLE) or valid (VALID), Minimum percentage of free space in a block; NULL for partitioned tables, Minimum percentage of used space in a block; NULL for partitioned tables, Initial number of transactions; NULL for partitioned tables, Maximum number of transactions; NULL for partitioned tables, Size of the initial extent (in bytes); NULL for partitioned tables, Size of secondary extents (in bytes); NULL for partitioned tables, Minimum number of extents allowed in the segment; NULL for partitioned tables, Maximum number of extents allowed in the segment; NULL for partitioned tables, Percentage increase in extent size; NULL for partitioned tables, Number of process freelists allocated to the segment; NULL for partitioned tables, Number of freelist groups allocated to the segment; NULL for partitioned tables. This view does not display the OWNER column. So we can not depend on the ALL_TABLES system table for getting accurate rows count. To list all tables from a schema of Oracle database you can use tables: USER_TABLES, USER_ALL_TABLES, TABS, ALL_TABLES, DBA_TABLES, USER_OBJECTS. For example, if the table is partitioned and is enabled for the IM column store, the value is NULL for ALL_TABLES but non-NULL for ALL_TAB_PARTITIONS. Depending you the permissions you've got, you might not be able to query all of them. collection of read-only tables that provide useful information about the database including schemas oracle constraints sql-drop. Indicates the service name for the service on which the IM column store should be populated. Name of the index-organized table, if any, to which the overflow or mapping table entry belongs. Question: I have hundreds of Stored procedures, and I need to know all the tables and column names used in each PL/SQL stored procedure. You might not have the privileges to view each of these views, so if one query doesn’t work, try another one. Indicates whether the table is used as the value of the container_map database property (YES) or not (NO). If the table is an index-organized table, then IOT_TYPE is IOT, IOT_OVERFLOW, or IOT_MAPPING. How to list all tables in Oracle: we can get the List All Tables in Oracle by either querying all_tables or user_tables or dba_tables. You require to fetch the data at schema level. 1. column_id - sequence number of the column as created 2. schema_name - table owner, schema name 3. table_name - table name 4. column_name - column name 5. data_type - column datatype 6. data_length - column length in bytes 7. data_precision - length - for NUMBER - decimal digits; for FLOAT - binary digits 8. data_scale - digits to right of decimal point in a number 9. nullable - flag indicating if column allows nulls values Sometimes, you need to see a list of all the tables in the database. When I disable all it is still no possible. Midhun MP. Ania 26th November, 2018 Article for ... all objects used in views accessible to the current user in Oracle database (B) all objects used in views in Oracle database. ALL: Data is populated on all instances, regardless of the value of the PARALLEL_INSTANCE_GROUP initialization parameter. ; The list or subquery must be surrounded by the parentheses. I work with very large Oracle enterprise databases all the time. Examples This view does not display the OWNER column. select object_name as table_name from user_objects where object_type = 'TABLE' order by object_name B. This column is intended for use with Oracle Exadata. This query returns a complete list of tables: 89k 30 30 gold badges 146 146 silver badges 190 190 bronze badges. We require to take information about the tables and its size. USER_ALL_TABLES describes the object tables and relational tables owned by the current user. User Owned Tables. How to list all tables from a schema of Oracle database. USER_TABLES describes the relational tables owned by the current user. oracle documentation: Get list of all tables in Oracle. Indicates whether the table contains container-specific data. Footnote 1 This column is available starting … If that parameter is not set, then the data is populated on all instances. To gather statistics for this view, use the DBMS_STATS package. All Parent - Child tables in the database Hi Tom,Can you please explain the way to get a list of all parent child relation in the database.The list should have the Grand parent as the first item and the last item will be the grand child.For Example,Parent Child----- Indicates whether the table segment is created. If you like to take export of all the schemas, all the users, and all the objects in … DBA_TABLES describes all relational tables in the database. How to get size of all tables in oracle database? Follow edited Dec 17 '13 at 12:21. Possible values: Indicates how the IM column store is distributed in an Oracle Real Application Clusters (Oracle RAC) environment: Indicates the compression level for the IM column store: This column has a value based on where the segments lie for a table. table_name - name of the table; Rows Number of empty (never used) data blocks in the table. Oracle Database Tips by Donald Burleson . Buffer pool for the table; NULL for partitioned tables: Database Smart Flash Cache hint to be used for table blocks: Solaris and Oracle Linux functionality only. See Oracle Database Concepts for more information. The referenced primary key is described in the columns r_owner and r_constraint_name of the table ALL_CONSTRAINTS.This will give you the info you want: SELECT a.table_name, a.column_name, a.constraint_name, c.owner, -- referenced pk c.r_owner, c_pk.table_name r_table_name, c_pk.constraint_name r_pk FROM all_cons_columns a JOIN all_constraints c ON a.owner = c.owner … An example of the ANALYZE TABLE command is shown here: ANALYZE TABLE scott.emp COMPUTE STATISTICS FOR TABLE; When you analyze a table, Oracle populates the following columns in the DBA_TABLES, ALL_TABLES, and USER_TABLES data dictionary views: The most used tables are USER_TABLES and USER_OBJECTS. Indicates whether the table segment is READ-ONLY or not. It is necessary to calculate the size of the index, lobsegment and lobindex objects of the table. This column is populated only if you collect statistics on the table using the DBMS_STATS package. Possible values: Result cache mode annotation for the table: Indicates whether the table has the attribute clustering clause (YES) or not (NO), Indicates whether Heat Map tracking is enabled on the table, Modification time, creation time, or both for Automatic Data Optimization, Indicates whether the table has an identity column (YES) or not (NO). ALL_TABLES is tables which own, and tables owner by other users, which you have been granted excplicit access to DBA_TABLES is all tables in the database All three are views of the underlying SYS tables, but the USER_ and ALL_ views joing in your username/security info to limit the results Cell flash cache hint to be used for table blocks: See Also: Oracle Exadata Storage Server Software documentation for more information, Indicates whether partitioned row movement is enabled (ENABLED) or disabled (DISABLED), GLOBAL_STATS will be YES if statistics are gathered or incrementally maintained, otherwise it will be NO, Indicates whether statistics were entered directly by the user (YES) or not (NO). When tables aren’t named appropriately and you have a lot of them, this can be a … Note: you … The value for columnar compression in the storage cell flash cache. Indicates the duplicate setting for the IM column store in an Oracle RAC environment: This column is available starting with Oracle Database 12c Release 2 (12.2.0.1). Indicates whether this object is duplicated on this shard (Y) or not (N), Indicates whether this object is sharded (Y) or not (N), Indicates whether the table is an external table (YES) or not (NO). So the above query is basically the oracle show tables in oracle database. Indicates whether the table is enabled for CONTAINERS() by default (YES) or not (NO), Indicates whether the table is enabled for use with the container_map database property (YES) or not (NO), Indicates whether the table is enabled for fetching an extended data link from the root (YES) or not (NO). The possible values are: DEFAULT: Data is populated on all instances specified with the PARALLEL_INSTANCE_GROUP initialization parameter. If one doesn't work, try the next one. This table contains the information related to accounting distribution … Indicates the priority for In-Memory Column Store (IM column store) population. A database administrator (DBA) for Oracle can simply execute a query to view the rows in DBA_SYS_PRIVS, DBA_TAB_PRIVS, and DBA_ROLE_PRIVS to retrieve information about user privileges related to the system, tables, and roles, respectively. To gather statistics for this view, use the ANALYZE SQL statement. This SQL query returns the names of the tables in the EXAMPLES tablespace: This SQL query returns the name of the tablespace that contains the HR schema: Oracle Database PL/SQL Packages and Types Reference for more information about the DBMS_STATS package, Static Data Dictionary Views: ALL_PART_COL_STATISTICS to DATABASE_PROPERTIES. Owner of the cluster, if any, to which the table belongs, Indicates whether row-level dependency tracking is enabled (ENABLED) or disabled (DISABLED), Indicates whether table compression is enabled (ENABLED) or not (DISABLED); NULL for partitioned tables. Basically the tables which are taking more than 5 MB we are looking for. List all Tables in Oracle database, owned by current Oracle user: List all Tables in Oracle database, accessed by Current user: List all Tables in Oracle database(entire database): 2 Ways To Create Auto Increment Column In Oracle (Primary Key), JavaScript Automatic Semicolon Insertion & Curly Brace Placement. In all other cases, this column is null. Query. – Example. Indicates whether the table is temporary (Y) or not (N), Indicates whether the table is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y) or not (N), Indicates whether the table is a nested table (YES) or not (NO). A. To enable this feature, run the DBMS_REPAIR.SKIP_CORRUPT_BLOCKS procedure. For example, a DBA wishing to view all system privileges granted to all users would issue the following query: USER_TABLES describes the relational tables owned by the current user. List tables used by a view in Oracle database. However, you can list all tables in a database by querying from various data dictionary views. If the table is not an index-organized table, then IOT_TYPE is NULL. There are three different virtual views you can query to get a list of all available tables. PO_DISTRIBUTIONS_ALL. Improve this question. Indicates how the IM column store is populated on various instances. Columns marked with an asterisk (*) are populated only if you collect statistics on the table with the DBMS_STATS package. Because when we move the table to another database, all objects belonging to the table … DBA_ALL_TABLES describes all object tables and relational tables in the database. METHOD-1: The below query will give a number of rows for the required tables but these are not accurate until we ANALYZE(gather stats) the tables. DBA_TABLES describes all relational tables in the database. In this note i will show how to list all tables in an Oracle database (equivalent to SHOW TABLES command in MySQL) using the command-line interface of SQL*Plus. Note that sys.tables returns information for the current database only, and you can also specify db_name.sys.tables to query the specified database.. Last Update: Oracle 11g R2 and Microsoft SQL Server 2012 Indicates whether or not changes to the table are logged; NULL for partitioned tables: Indicates whether the table has been backed up since the last modification (Y) or not (N). select object_name as table_name from all_objects t where object_type = 'TABLE' and owner = 'SCHEMANAME' order by object_name Columns. Example select owner, table_name from all_tables ALL_TAB_COLUMNS describes the columns of the tables, views, and clusters accessible to the current user.COLS is a synonym for USER_TAB_COLUMNS.. select * from all_tab_columns where table_name = … For a table with a small number of rows, the DELETE statement does a good job. So we can use below set of statements to find the count of rows of all the tables at once and store them in one permanent table for analysis purpose. In this syntax: The ALL operator must be preceded by an comparison operator such as =, != >,>=, <, <= and followed by a list or subquery. The service name corresponding to this is stored in the INMEMORY_SERVICE_NAME column. ALL_TABLES describes the relational tables accessible to the current user. To gather statistics for this view, use the DBMS_STATS package. Tables accessible to the current user Tables are the basic unit of data storage in Oracle databases. Query was executed under the Oracle9i Database version. 4 . select tablespace_name, table_name from user_tables; People familiar with MySQL database will know that We use show tables to list the tables in MySQL. Average amount of free space, in bytes, in a data block allocated to the table, Number of rows in the table that are chained from one data block to another, or which have migrated to a new block, requiring a link to preserve the old ROWID, Average length of a row in the table (in bytes), Average freespace of all blocks on a freelist, Number of threads per instance for scanning the table, or DEFAULT, Number of instances across which the table is to be scanned, or DEFAULT, Indicates whether the table is to be cached in the buffer cache (Y) or not (N), Indicates whether table locking is enabled (ENABLED) or disabled (DISABLED), Date on which this table was most recently analyzed, Indicates whether the table is partitioned (YES) or not (NO).