Tài liệu SQL quizzes docx

... The NULL SQL keyword is used to represent a missing or unknown value. NULL in SQL represents nothing. represent positive infinity. represent negative infinity. represent 0 value. 2. The SQL DROP ... function used in SQL A. AVG ( ) B. SQRT ( ) C. COUNT ( ) D. All the Above 47. Which of the following denote group clause in SQL A. having B. group by C. Where D. Both A. and B. 48. The...

Ngày tải lên: 24/01/2014, 21:20

... SQL SQLSERVER: \SQL SQL Server Database Engine SQLPolicy SQLSERVER:\SQLPolicy SQL Server Policy Management SQLRegistration SQLSERVER:\SQLRegistration SQL Server Registrations DataCollection SQLSERVER:\DataCollection ... SQL Server MVP with over 14 years of experience with SQL Server and over 6 years of training experience. Brad is a frequent speaker at SQL PASS , European PASS...

Ngày tải lên: 15/12/2013, 13:15

... SQL Server MVP with over 14 years of experience with SQL Server and over 6 years of training experience. Brad is a frequent speaker at SQL PASS , European PASS , SQL Connections, SQLTeach, ... with SQL Server 2005. Starting with SQL Server 2005, SQL Server: SQL Statistics: Batch Request/sec replaced the older transactions/sec as the counter that accurately measured overall...

Ngày tải lên: 15/12/2013, 13:15

... barcode checksum digit. Here is the author’s suggested function code translated from T -SQL in standard SQL/ PSM: CREATE FUNCTION Barcode_CheckSum(IN my_barcode CHAR(12)) RETURNS INTEGER BEGIN ... fairness, SQL/ PSM does not handle errors by returning negative numbers, but I don’t want to get into a lesson on the mechanism used, which is quite different from the one used in T -SQL. W...

Ngày tải lên: 21/01/2014, 08:20

... limited version of the SQL language. He said, “I don’t need to support the full language—that would be too much work. I need only one SQL statement: SELECT.” I hadn’t been taught SQL in school. Databases ... related to data- base programming. I recommend SQL Performance Tuning [ GP03] and High Performance MySQL, Second Edition [ SZT + 08]. Some of the topics i n SQL Antipatterns are...

Ngày tải lên: 21/01/2014, 08:20

... Phần 2 SQL Advanced (bài 2) Câu lệnh điều kiện AND & OR AND và OR dùng nối 2 hoặc nhiều điều

Ngày tải lên: 21/01/2014, 16:20

... established, SQL Anywhere calls the sp_login_environment built-in procedure, which in turn calls the sp_tsql_environ - ment procedure if the communication protocol is TDS. The sp_tsql_environment procedure ... happen to be using TDS but you aren’t interested in Transact SQL compatibility, you should look up “sp_tsql_envi - ronment” in the SQL Anywhere Help and make sure the option value...

Ngày tải lên: 26/01/2014, 09:20

... ODBC; these alternate SQLSTATE values are docu - mented in the SQL Anywhere Help. Figure 9-21 shows the Help description for thread deadlock: The SQLCODE is -307 and the SQLSTATE inside the engine is ... E. "%ASANY9%\win32\dbisql.exe" -c "ENG=test9;DBN=test9;UID=A;PWD =sql; CON=A" "%ASANY9%\win32\dbisql.exe" -c "ENG=test9;DBN=test9;UID=B;PWD=;CON=B" &...

Ngày tải lên: 26/01/2014, 09:20