v$sql view field explanation

Reprinted: http://blog.csdn.net/mjj291268154/article/details/38823445

 

v$sql view parsing:

 

SQL_TEXT: first 1000 characters of SQL text

 

SHARABLE_MEM: Size of shared memory occupied (unit: byte)

PERSISTENT_MEM: fixed memory size during the lifetime (unit: byte)

RUNTIME_MEM: fixed memory size during execution

SORTS: The number of sorts done

LOADED_VERSIONS: Displays whether the context heap is loaded, 1 is 0 or not

OPEN_VERSIONS: Displays whether the child cursor is locked, 1 is 0 or not

USERS_OPENING: The number of users executing the statement

FETCHES: The number of fetches for the SQL statement.

EXECUTIONS: The number of executions since it was loaded into the cache library

USERS_EXECUTING: The number of users executing the statement

LOADS: The number of times the object has been loaded

FIRST_LOAD_TIME: first load time

INVALIDATIONS: Invalid number of times

PARSE_CALLS: Number of parsing calls

DISK_READS: Number of disk reads

BUFFER_GETS: The number of times the buffer is read

ROWS_PROCESSED: The total number of columns returned by the parsed SQL statement

COMMAND_TYPE: Command type code

OPTIMIZER_MODE: Optimizer model for SQL statements

OPTIMIZER_COST: The query cost given by the optimizer

PARSING_USER_ID: The first parsed user ID

PARSING_SCHEMA_ID: The first parsed schedule ID

KEPT_VERSIONS: Indicates whether the current child cursor is marked as resident memory using the DBMS_SHARED_POOL package

ADDRESS: current cursor parent handle address

TYPE_CHK_HEAP: Description of the current heap type check

HASH_VALUE: Hash value of the parent statement in the cache library

PLAN_HASH_VALUE: Numerical execution plan.

CHILD_NUMBER: number of child cursors

MODULE: The first time this statement is parsed is the module name set by calling DBMS_APPLICATION_INFO.SET_MODULE.

ACTION: The action name set by calling DBMS_APPLICATION_INFO.SET_ACTION when this statement is first parsed.

SERIALIZABLE_ABORTS: Number of times the transaction failed to serialize

OUTLINE_CATEGORY: If outline is applied during cursor interpretation, then this column will display outline categories, otherwise this column will be empty

CPU_TIME: CPU usage time (unit, milliseconds) for parsing/executing/getting

ELAPSED_TIME: Time spent parsing/executing/getting (unit, milliseconds)

OUTLINE_SID:outline session标识

CHILD_ADDRESS: child cursor address

SQLTYPE: indicates the SQL language version used by the current statement

REMOTE: Indicates whether the cursor is a remote image (Y/N)

OBJECT_STATUS: object status (VALID or INVALID)

IS_OBSOLETE: When the number of child cursors is too large, indicate whether the cursor is abandoned (Y/N)

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