What is true about sequences?
A.
Only the DBA can control which sequence is used by a certain table.
B.
Once created, a sequence belongs to a specific schema.
C.
Once created, a sequence is linked to a specific table.
D.
Once created, a sequence is automatically available to all users.
Explanation:
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By definition, each schema object belongs to a specific schema.
http://hsqldb.org/doc/guide/databaseobjects-chapt.html#dbc_schemas_schema_objects
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Scored 90%! (The passing score is 60%)
There were 64 questions in my actual 1Z0-051 test.
Many questions on SQL statements (Examine, Evaluate…etc.), Manipulating Data (Insert, Update, Delete), Using DDL Statements to Create and Manage Tables.
Also, please pay close attention to questions on Reporting Aggregated Data Using the Group Functions, Using Subqueries to Solve Queries, Creating Schema Objects, a little difficult!
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