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The latest Oracle SQL and PL-SQL 1z0-148 exam practice questions test your strength

QUESTION 1
Which two statements are correct in Oracle Database 12c?
A. For native compilation, PLSQL_OPTIMIZE_LEWVEL should be set to 2.
B. Native compilation is the default compilation method
C. Native compilation should be used during development.
D. Natively compiles code is stored in the SYSTEM tablespace.
E. To change a PL/SQL object from interpreted to native code, set the PLSQL_CODE_TYPE to NATIVE and recompile
it.
Correct Answer: DE

QUESTION 2
Examine this external function declaration:
CREATE FUNCTION compare_and_sum(p1 PLS_INTEGER, p2 IN PLS_INTEGER, p3 IN OUT NUMBER)
RETURN PLS_INTEGER
AS LANGUAGE C LIBRARY mylib
NAME “compareAndSum” WITH CONTEXT;
Which C function does it publish?
A. OCINumber * compareAndSum (OCIExtProcContext *ctx, OCINumber *p1, OCINumber *p2, OCINumber *p3);
B. OCINumber compareAndSum (OCIExtProcContext *ctx, OCINumber p1, OCINumber p2, OCINumber *p3);
C. int compareAndSum (OCIExtProcContext *ctx, int p1, int p2, OCINumber *p3);
D. int compareAndSum (OCIExtProcContext *ctx, int p1, int p2, OCINumber p3);
E. int compareAndSum (OCIExtProcContext *ctx, int p1, int p2, int p3);
F. int compareAndSum (OCIExtProcContext *ctx, int p1, int p2, int* p3);
G. OCINumber compareAndSum (OCIExtProcContext *ctx, OCINumber p1, OCINumber p2, OCINumber p3);
Correct Answer: F

QUESTION 3
Identify three guidelines for the DBMS_ASSERT package. (Choose three.)
A. Prefix all calls to DBMS_ASSERT with the SYS schema name.
B. Embed DBMS_ASSERT verification routines inside the injectable string.
C. Escape single quotes when you use the ENQUOTE_LITERAL procedure.
D. Define and raise exceptions explicitly to handle DBMS_ASSERT exceptions.
E. Prefix all calls to DBMS_ASSERT with a schema name that owns the subprogram that uses the DBMS_ASSERT
package.
Correct Answer: ACD

QUESTION 4
DATA_FILES is a directory object that contains the DETAILS.TXT text file.
You have the required permissions to access the directory object.
You create a table using the following command:
CREATE TABLE clob_tab(col2 CLOB);
View the Exhibit and examine the PL/SQL block that you execute for loading the external text file into the table that
currently has no rows. The PL/SQL block results in an error.
What correction must be done to ensure the PL/SQL block executes successfully?

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