- How can I see all users in Oracle?
- How can I tell when a SQL Server table was last modified?
- Can you delete from a view?
- What is Ora_rowscn?
- How do I find modified objects in SQL Server?
- What is DBA objects in Oracle?
- How can I see who modified a stored procedure in SQL Server?
- What is all objects in Oracle?
- What are triggers in DB explain their types How do they work?
- How do I find the last modified view in SQL Server?
- What is a DML operation?
- What is mutating table error?
- How do you do DML operations on views?
- What is last DDL time in Oracle?
- How can I see all tables in Oracle?
- What is a DDL statement?
- What is DDL in Oracle with example?
- How do you find the last modified date of a table in Oracle?
How can I see all users in Oracle?
SELECT * FROM user_users;Oracle ALL_USERS.
The ALL_USERS view lists all users that visible to the current user.
However, this view doesn’t describe the users.
The DBA_USERS view describes all user in the Oracle database.
THe USER_USERS view describes the current user:.
How can I tell when a SQL Server table was last modified?
How to determine the last modified date of tables in SQL Server Instancet.[name] AS [UserTableName], [create_date] AS [CreatedDate], [modify_date] AS [ModifiedDate] … t.[name] AS [UserTableName], [create_date] AS [CreatedDate], [modify_date] AS [ModifiedDate] … t.[name] AS [UserTableName], [create_date] AS [CreatedDate],
Can you delete from a view?
You can insert, update, and delete rows in a view, subject to the following limitations: If the view contains joins between multiple tables, you can only insert and update one table in the view, and you can’t delete rows. You can’t directly modify data in views based on union queries.
What is Ora_rowscn?
ORA_ROWSCN reflects the system change-number (SCN) of the most recent change to a row. This change can be at the level of a block (coarse) or at the level of a row (fine-grained). The latter is provided by row-level dependency tracking.
How do I find modified objects in SQL Server?
3 Answers. Query the sys. objects table to find the objects that changed and filter by modify_date and type ; U = User table, P = Stored procedure. This approach will tell you what objects have changed, but not the specific changes.
What is DBA objects in Oracle?
DBA_OBJECTS describes all objects in the database. Its columns are the same as those in ALL_OBJECTS . See Also: “ALL_OBJECTS” © Oracle.
How can I see who modified a stored procedure in SQL Server?
You can use sys.proceedures to find the date of the most recent modification for stored procedures;SELECT [name], create_date, modify_date.FROM sys.procedures.ORDER BY 3 DESC;
What is all objects in Oracle?
ALL_OBJECTS describes all objects accessible to the current user. … USER_OBJECTS describes all objects owned by the current user. This view does not display the OWNER column.
What are triggers in DB explain their types How do they work?
A database trigger is special stored procedure that is run when specific actions occur within a database. Most triggers are defined to run when changes are made to a table’s data. Triggers can be defined to run instead of or after DML (Data Manipulation Language) actions such as INSERT, UPDATE, and DELETE.
How do I find the last modified view in SQL Server?
select route coloumn and then paste the exact procedure name into ^F window and press enter you will get exact modified date. If the object is a table or a view, modify_date also changes when a clustered index on the table or view is created or altered.
What is a DML operation?
Data manipulation language (DML) statements add, change, and delete Oracle Database table data. A transaction is a sequence of one or more SQL statements that Oracle Database treats as a unit: either all of the statements are performed, or none of them are.
What is mutating table error?
When a table is mutating, it is changing. … If the changing is taking place and you try to make another change in the middle of the first change, Oracle will issue a mutating table error with the error code ORA-04091.
How do you do DML operations on views?
DML operations could be performed through a simple view. DML operations could not always be performed through a complex view. INSERT, DELETE and UPDATE are directly possible on a simple view. We cannot apply INSERT, DELETE and UPDATE on complex view directly.
What is last DDL time in Oracle?
LAST_DDL_TIME is the last time the table had a DDL (structure) change applied, but does NOT include DML (data). –
How can I see all tables in Oracle?
The easiest way to see all tables in the database is to query the all_tables view: SELECT owner, table_name FROM all_tables; This will show the owner (the user) and the name of the table. You don’t need any special privileges to see this view, but it only shows tables that are accessible to you.
What is a DDL statement?
Data definition language (DDL) statements let you to perform these tasks: Create, alter, and drop schema objects. Grant and revoke privileges and roles. Analyze information on a table, index, or cluster.
What is DDL in Oracle with example?
DDL (Data Definition Language) is a language used by a database management system (like Oracle) that allows users to define the database and specify data types, structures and constraints on the data. Examples DDL statements are: CREATE TABLE, CREATE INDEX, ALTER, and DROP.
How do you find the last modified date of a table in Oracle?
How to find when a table was last modified in oracleIf you want to find, when a table was last modified like insert,update ,delete, then use the dictionary table dba_tab_modifications.SCENARIO:Insert into test data:As you can see, the dba_tab_modification is not showing any rows.More items…