A sequence of any number of characters enclosed in the double queotes“”is called a character ______.A．arrayB．groupC．setD．string
A sequence of any number of characters enclosed in the double queotes“”is called a character ______.
A．array
B．group
C．set
D．string
相关考题：
The protective scheme that senses zero sequence current and operates as necessary is called as _____. A、overcurrent protectionB、zero sequence protectionC、negative sequence protectionD、directional protection
In C language, a （67） is a series of characters enclosed in double quotes.（67）A. matrixB. stringC. programD. stream
● In C language, a ___(67)___ is a series of characters enclosed in double quotes.(67)A. matrix B. string C. program D. stream
Given two different character sets (A and B), which of the following must be true for A to be considered a strict superset of B?() A. A must contain all of the characters defined in BB. A must be UnicodeC. The encoded values in A must match the encoded values in B for all characters defined in BD. A must be a multibyte character setE. The encoded values in A must match the encoded values in B for all numeric and alphabetic characters in B
In C language，a _____ is a series of characters enclosed in double quotes。A．matrixB．stringC．programD．streamA．B．C．D．
In C language, a ______ is a series of characters enclosed in double quotes.A．matrixB．stringC．programD．stream
In C language, a(67) is a series of characters enclosed in double quotes．A．matrixB．stringC．programD．stream
If two communicating entities are in different hosts connected by a network，there is a risk that PDUs will not arrive in the order in which they were sent，because they may traverse（ ）paths through the network. If each PDUs is given a unique number，and numbers are assigned（ ），then it is a logically simple task for the receiving entity to reorder（ ）PDUs on the basis of sequence number. A problem with this scheme is that，with a（ ）sequence number field，sequence number will repeat. Evidently，the maximum sequence number must be（ ）than the maximum number of PDUs that could be outstanding at any time.A. same B. different C. single D. uniqueA. randomly B. equally C. uniformly D. sequentiallyA. received B. sent C. transmitting D. forwardingA. various B. diverse C. finite D. infinite A. smaller B. greater C. less D. more
A customer has a p650 with a write-intensive database application. Recently the order entry team has complained about unusually slow response times. There have been no complaints from any other departments. Which of the following actions would most likely address the problem？（）A、Double the number of processors.B、Double the number of memory DIMMs.C、Double the number of network adapters.D、Double the number of SCSI buses and disks.
Given two different character sets （A and B）， which of the following must be true for A to be considered a strict superset of B？（）A、 A must contain all of the characters defined in BB、 A must be UnicodeC、 The encoded values in A must match the encoded values in B for all characters defined in B D、 A must be a multibyte character setE、 The encoded values in A must match the encoded values in B for all numeric and alphabetic character
Which the statement is true？（）A、 The Error class is a Runtime Exception.B、 No exceptions are subclasses of Error.C、 Any statement that may throw an Error must be enclosed in a try block.D、 any statement that may throw an Exception must be enclosed in a try block.E、 Any statement that may throw an Runtime Exception must be enclosed in a try block.
You want the ability to recovery any time within the last seven days and therefore you configured the recovery window retention policy using the command： RMAN CONFIGURE RETENTIOH POLICY TO RKCOVFRY WINDOW OF 7 DAYS； After configuring the recovery window， you performed the database backup as follows：（） A、 Backup RB1 at log sequence number 12871 on 5th JanB、 Backup RB2 at log sequence number 15622 on 12th JanC、 Backup RB3 at log sequence 16721 on 15th JanD、 On 20th Jan when the log sequence number was 18112 you realize that there Is a need to a point in time at the beginning of the recovery window. You have all an hived redo log files to date.
When performing incomplete recovery using UNTIL SEQUENCE with RMAN， which two pieces of information are required？（）A、Thread number.B、Log Sequence number.C、Control file sequence number.D、Name of the last archived log.
For which action can you use the TO_DATE function? （）A、Convert any date literal to a dateB、Convert any numeric literal to a dateC、Convert any character literal to a dateD、Convert any date to a character literalE、Format '10-JAN-99' to 'January 10 1999'
Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2(30) JOB_ID NUMBER/ SAL NUMBER MGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in orderto populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）A、You cannot use the EMP_ID_SEQ sequence to populate the JOB_ID column.B、The EMP_ID_SEQ sequence is invalidated when you modify the EMPLOYEE_ID column.C、The EMP_ID_SEQ sequence is not affected by modifications to the EMPLOYEES table.D、Any other column of NUMBER data type in your schema can use the EMP_ID_SEQ sequence.E、The EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEES table.F、The EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEE_ID column.
Given two different character sets (A and B), which of the following must be true for A to be considered a strict superset of B?（）A、A must contain all of the characters defined in BB、A must be UnicodeC、The encoded values in A must match the encoded values in B for all characters defined in BD、A must be a multibyte character setE、The encoded values in A must match the encoded values in B for all numeric and alphabetic characters in B
Which two statements are true regarding the use of UTF-16 encoding？ （）A、Enables easier loading of multinational data. B、Uses a fixed-width Multibyte encoding sequence.C、Asian characters are represented in three characters. D、Used a variable-width Multibyte encoding sequence. E、European characters are represented on one or two bytes.
What does the Character Set Scanner command line utility do？（）A、Reports only on any Unicode character conversions required.B、Performs character set conversions to the new specified character set.C、Scans on any character set conversion required， then converts the data.D、Checks for any character definitions that will fail conversion to the new character set.
Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2(30) JOB_ID NUMBER SAL NUMBER MGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in order to populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）A、You cannot use the EMP_ID_SEQ sequence to populate the JOB_ID column.B、The EMP_ID_SEQ sequence is invalidated when you modify the EMPLOYEE_ID column.C、The EMP_ID_SEQ sequence is not affected by modifications to the EMPLOYEES table.D、Any other column of NUMBER data type in your schema can use the EMP_ID_SEQ sequence.E、The EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEES table.F、The EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEE_ID column.
多选题Given two different character sets （A and B）， which of the following must be true for A to be considered a strict superset of B？（）AA must contain all of the characters defined in BBA must be UnicodeCThe encoded values in A must match the encoded values in B for all characters defined in BDA must be a multibyte character setEThe encoded values in A must match the encoded values in B for all numeric and alphabetic character
单选题For which action can you use the TO_DATE function?（）AConvert any date literal to a dateBConvert any numeric literal to a dateCConvert any character literal to a dateDConvert any date to a character literalEFormat '10-JAN-99' to 'January 10 1999'
多选题Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2(30) JOB_ID NUMBER SAL NUMBER MGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in order to populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）AYou cannot use the EMP_ID_SEQ sequence to populate the JOB_ID column.BThe EMP_ID_SEQ sequence is invalidated when you modify the EMPLOYEE_ID column.CThe EMP_ID_SEQ sequence is not affected by modifications to the EMPLOYEES table.DAny other column of NUMBER data type in your schema can use the EMP_ID_SEQ sequence.EThe EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEES table.FThe EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEE_ID column.
多选题Given two different character sets (A and B), which of the following must be true for A to be considered a strict superset of B?（）AA must contain all of the characters defined in BBA must be UnicodeCThe encoded values in A must match the encoded values in B for all characters defined in BDA must be a multibyte character setEThe encoded values in A must match the encoded values in B for all numeric and alphabetic characters in B
多选题Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2(30) JOB_ID NUMBER/ SAL NUMBER MGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in orderto populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）AYou cannot use the EMP_ID_SEQ sequence to populate the JOB_ID column.BThe EMP_ID_SEQ sequence is invalidated when you modify the EMPLOYEE_ID column.CThe EMP_ID_SEQ sequence is not affected by modifications to the EMPLOYEES table.DAny other column of NUMBER data type in your schema can use the EMP_ID_SEQ sequence.EThe EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEES table.FThe EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEE_ID column.
多选题Examine the structure of the EMPLOYEES table: EMPLOYEE_ID NUMBER NOT NULL, Primary Key EMP_NAME VARCHAR2(30) JOB_ID NUMBER SAL NUMBER MGR_ID NUMBER References EMPLOYEE_ID column DEPARTMENT_ID NUMBER Foreign key to DEPARTMENT_ID column of the DEPARTMENTS table You created a sequence called EMP_ID_SEQ in order to populate sequential values for the EMPLOYEE_ID column of the EMPLOYEES table. Which two statements regarding the EMP_ID_SEQ sequence are true? （）AYou cannot use the EMP_ID_SEQ sequence to populate the JOB_ID column.BThe EMP_ID_SEQ sequence is invalidated when you modify the EMPLOYEE_ID column.CThe EMP_ID_SEQ sequence is not affected by modifications to the EMPLOYEES table.DAny other column of NUMBER data type in your schema can use the EMP_ID_SEQ sequence.EThe EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEES table.FThe EMP_ID_SEQ sequence is dropped automatically when you drop the EMPLOYEE_ID column.
单选题Reserve buoyancy is（）.Aalso called GMBthe void portion of the ship below the waterline which is enclosed and watertightCaffected by the number of transverse watertight bulkheadsDthe watertight portion of a vessel above the waterline
单选题Which the statement is true？（）A The Error class is a Runtime Exception.B No exceptions are subclasses of Error.C Any statement that may throw an Error must be enclosed in a try block.D any statement that may throw an Exception must be enclosed in a try block.E Any statement that may throw an Runtime Exception must be enclosed in a try block.