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Top competitors on query "when do you omit semicolon with dynamic sql"
http://weblogs.asp.net/scottgu/archive/2007/09/07/linq-to-sql-part-9-using-a-custom-linq-expression-with-the-lt-asp-linqdatasource-gt-control.aspx Competition: low
I could have a common method which is responsible for reading the connection string and creating an instance, but then you would need to know about that method, which is now even further away from the default constructor. I for one would like to be able to trap this event so that I can store the original value prior to the change and thus enable undo functionality from within a base class, but with the event being fired without any valid arguments it is practically useless
http://www.tutorialspoint.com/plsql/plsql_quick_guide.htm Competition: low
If you are not using savepoiny, then simply use the following statement to rollback all the changes: ROLLBACK; Savepoints Savepoints are sort of markers that help in splitting a long transaction into smaller units by setting some checkpoints. Flow Diagram: IF-THEN-ELSE Statement A sequence of IF-THEN statements can be followed by an optional sequence of ELSE statements, which execute when the condition is FALSE
SQL SERVER Reporting Services(SSRS) Tips
http://ssrstips.blogspot.com/ Competition: low
If explicit axis settings are not specified, the y-axis uses the auto-scale mode as follows:The y-axis minimum value is determined based on the lowest y-value of all data points. In one of my future articles I will explain how to pass parameters to the class constructor and I will also tell something about SSRS and .Net Permissions
Adobe Flash Support - Adobe Flash Help from Adobe Flash Experts
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See more videos Watch Video Tutorials Learn from the experts in these step by step tech training tutorials Excel for Beginners Tutorials WordPress Intermediate Series Introduction to PHP Windows Powershell Objective C Programming for... Watch Instructional Videos Learn from the experts in these step by step tech training tutorials Avoiding Bugs in Microsoft Access Top Ten Best New Features in Visio 2010 Organize Your Visio Diagrams with Containers and Lists How To: Using Objects, Properties, Events and Methods in Micro..
http://blog.sqlauthority.com/ Competition: low
Before continuing with the performance comparison, I suggest you to change the database context to AdventureWorks and also enable STATISTICS IO settings on for performance comparison. One of the software developers here was trying to calculate some fields having integer values and divide it which gave incorrect results in integer where accurate results including decimals was expected
http://oreilly.com/catalog/errata.csp?isbn=0790145345059 Competition: low
Is there a best practice we should follow for the order we list the tables in the ON clause? Note from the Author or Editor:No, the order doesn't matter. Note from the Author or Editor:The code sample in practice Exercise 1 part 6 has the recommended form; namely, the object type should be specified and both inputs should be Unicode literals with the N prefix
MS Excel Support - MS Excel Help from MS Excel Experts
http://www.experts-exchange.com/Software/Office_Productivity/Office_Suites/MS_Office/Excel/ Competition: low
See more videos Watch Video Tutorials Learn from the experts in these step by step tech training tutorials Excel for Beginners Tutorials WordPress Intermediate Series Introduction to PHP Windows Powershell Objective C Programming for... Watch Instructional Videos Learn from the experts in these step by step tech training tutorials Avoiding Bugs in Microsoft Access Top Ten Best New Features in Visio 2010 Organize Your Visio Diagrams with Containers and Lists How To: Using Objects, Properties, Events and Methods in Micro..
http://msdn.microsoft.com/en-us/magazine/cc163917.aspx Competition: low
This particular page is a hacker's paradise because it can be hijacked by the astute hacker to reveal secret information, change data in the database, damage the database records, and even create new database user accounts. Then the URL and the hidden field need to be modified, and the source executed.If this is a true vulnerability, the additional information after the apostrophe will be treated as a part of the query string submitted to the SQL server and will be executed by the back end.Evaluate the ErrorsIf a hacker knows what to look for, error pages are a great tool to diagnose and refine hacking attempts because of the information they can provide
http://ww2.cis.temple.edu/cis109friedman/CIS%20109%20-%20Lecture%20Set%20IV%20-%20SQL/AAA%20Lecture%20Set%203%20-%20SQL-QBE%20Ver%205.htm Competition: low
As we will see in Access 2000, we can build a QBE query, and by clicking on an 'SQL icon' we will reveal the Access SQL code which was automatically created. Set Default Update This is similar to On Update Set Null except that it sets the entries in child tables to a predefined default value assuming there is one
http://sqlmag.com/t-sql/t-sql-best-practices-part-2 Competition: low
23, 2013 blog Integrating MongoDB and Open Source Data Stores with Power Pivot Business users don't care where data is stored or where it's coming from. Sometimes a single query with 20 joins will perform just fine, and a query with 4 joins will actually perform better if split into steps that fill temp tables that are then joined
http://www.ssw.com.au/Ssw/Standards/Rules/RulesToBetterSQLReportingServices.aspx Competition: low
Use a warning like this: Warning: Do not reply to or forward this report in an email - Outlook may slow down or even hang Data Layout - Do you use expressions to show the correct scale on charts? In Reporting Services 2005 you can use an expression to specify the scale of your charts. Figure: SSW SQL Reporting Services Auditor SSW SQL Reporting Services Auditor is Web-Application that iterates through all the reports on a report server and shows whether they have rendered correctly or if any errors occurred
http://it.toolbox.com/wiki/index.php/How_do_I_escape_single_quotes_in_SQL_queries%3F Competition: low
For most DBMS, doubling the single-quote character is the default means of escaping a single-quote; but, for example, mySQL uses a backslash as the escape character. (Not unique to concatenating strings, but is true of any raw SQL query.) prone to failure for every last name input like O'Connor (or similar surname), possessive, or contracted input
http://www.heydba.net/2011/06/email-sql-server-errors-tool-for-sql-server-2005/ Competition: low
How is your SQL Agent service account mapped to a login? Is it through a group (default) or you have a login for it? If you only have it through a group, trying creating a login for the account itself and then try running the job again
How To: Protect From SQL Injection in ASP.NET
http://msdn.microsoft.com/en-us/library/ff648339.aspx Competition: low
Review Your Application's Use of Parameterized Stored Procedures Because using stored procedures with parameters does not necessarily prevent SQL injection, you should review your application's use of this type of stored procedure. Additional Resources How To: Prevent Cross-Site Scripting in ASP.NET How To: Protect From Injection Attacks in ASP.NET How To: Use Regular Expressions to Constrain Input in ASP.NET Feedback Provide feedback by using either a Wiki or e-mail: Wiki
PostgreSQL for Beginners
http://www.postgresqlforbeginners.com/ Competition: low
As well as count, min, max and sum mentioned above other commonly used aggregates are avg (average) and stddev (standard deviation, a statistical measure of variability). In an earlier post, we normalized our ceos table into two tables, one table to list the set of unique people and a second table to associate a person with a term as CEO
MySQL :: MySQL 5.5 Reference Manual :: 5.1.3 Server Command Options
http://dev.mysql.com/doc/refman/5.5/en/server-options.html Competition: low
By default, the option is off and only UDFs that have at least one auxiliary symbol can be loaded; this prevents attempts at loading functions from shared object files other than those containing legitimate UDFs. You must not try to use this option on a system that does not support the mlockall() system call; if you do so, mysqld will very likely crash as soon as you try to start it
AS400 Iseries
http://www.as400blog.blogspot.com/ Competition: low
For instance you may have a Close Of Business process or an overnight batch run that does you major updates and reporting, and have certain jobs that need to run before or after other jobs, but the built in job scheduler doesnt have anything that handles that. You do have to be careful doing an immediate submit of a job though as if you setup your job in the default way, then immediate submits will use the current library list settings from your job
SQL - Wikipedia, the free encyclopedia
http://en.wikipedia.org/wiki/SQL Competition: low
Until 1996, the National Institute of Standards and Technology (NIST) data management standards program certified SQL DBMS compliance with the SQL standard. CTEs can be also be recursive by referring to themselves; the resulting mechanism allows tree or graph traversals (when represented as relations), and more generally fixpoint computations
Transact-SQL Syntax Conventions (Transact-SQL)
http://technet.microsoft.com/en-us/library/ms177563.aspx Competition: low
This convention is used to group and label sections of lengthy syntax or a unit of syntax that can be used in more than one location within a statement. When referencing a specific object, you do not always have to specify the server, database, and schema for the SQL Server Database Engine to identify the object
SQLite Frequently Asked Questions
http://www.sqlite.org/faq.html Competition: low
It is true that Informix and Microsoft SQL Server use interpretation (2), however we the SQLite developers hold that interpretation (1) is the most natural reading of the requirement and we also want to maximize compatibility with other SQL database engines, and most other database engines also go with (1), so that is what SQLite does. (16) Why does ROUND(9.95,1) return 9.9 instead of 10.0? Shouldn't 9.95 round up? SQLite uses binary arithmetic and in binary, there is no way to write 9.95 in a finite number of bits
http://www.sommarskog.se/dynamic_sql.html Competition: low
Here I will just drop two keywords: SQL Injection and Query-Plan Reuse.) Nonetheless, in many shops the mandate is that you should use stored procedures. You would still have one set of procedures per table, but the code would be in one single include file.) SELECT * FROM sales + @yymm This is a variation of the previous case, where there is a suite of tables that actually do describe the same entity
In Sql server, when should you use GO and when should you use semi-colon ;? - Stack Overflow
http://stackoverflow.com/questions/3701147/in-sql-server-when-should-you-use-go-and-when-should-you-use-semi-colon Competition: low
CREATE DEFAULT, CREATE FUNCTION, CREATE PROCEDURE, CREATE RULE, CREATE TRIGGER, and CREATE VIEW statements cannot be combined with other statements in a batch. This is defined in the SQL Standards, Sure, more often than not SQL Server allows you to be sloppy and omit it but why get into bad habits? ;) As others have pointed out, the statement preceding a common table expression (CTE) must be terminated with a semi-colon
MySQL :: MySQL 5.1 Reference Manual :: 5.1.3 Server Command Options
http://dev.mysql.com/doc/refman/5.1/en/server-options.html Competition: low
By default, the option is off and only UDFs that have at least one auxiliary symbol can be loaded; this prevents attempts at loading functions from shared object files other than those containing legitimate UDFs. You must not try to use this option on a system that does not support the mlockall() system call; if you do so, mysqld will very likely crash as soon as you try to start it
An Unofficial Raspberry Pi Blog: Getting started with Databases on the Pi with SQLite
http://www.raspberrypiblog.com/2012/11/getting-started-with-databases-on-pi.html Competition: low
Obviously SQLite may not be the perfect choice for every project and if you want to read up some more about if it will be suitable for your particular project check out the Appropriate Uses of SQLite page on their website. Boot your Pi up to the command line (or if you are already in the graphical interface open LXTerminal) and type: sudo apt-get install sqlite3 Wait while it downloads and installs; and you are done
http://docs.oracle.com/cd/A57673_01/DOC/api/doc/PAD18/ch8.htm Competition: low
It could also have been declared as type float or even string, because Oracle supports conversions from each of these datatypes to NUMBER (the datatype of the empno column in the EMP table). -- Since the DECLARE statements are directives (no code is -- generated), they may be placed with variable declarations -- but must be present within the same physical file as the -- remaining cursor operations (i.e
When should I use semicolons in SQL Server? - Stack Overflow
http://stackoverflow.com/questions/710683/when-should-i-use-semicolons-in-sql-server Competition: low
In all programming, if we can adhere to a Standard without loss of functionality, we should, because then neither our code or our habits are tied to one proprietary vendor. (See TheTXI's answer above for the required list.) Since the compiler doesn't require them, you can put them all over, but why? The compiler won't tell you where you forgot one, so you'll end up with inconsistent use
http://oreilly.com/catalog/ornewfeatures/chapter/ch04.html Competition: low
Suppose that I have a more specialized requirement: I want to display (or in some other way process) all column information for rows that contain a date column with a value within a certain range. The string may contain placeholders for bind arguments, but you cannot use bind values to pass in the names of schema objects, such as table names or column names
7 Performing SQL Operations with Native Dynamic SQL
http://docs.oracle.com/cd/B14117_01/appdev.101/b10807/11_dynam.htm Competition: low
You cannot concatenate the subscripted elements directly into the string argument to EXECUTE IMMEDIATE; for example, you cannot build a collection of table names and write a FORALL statement where each iteration applies to a different table. Examples of Dynamic Bulk Binds Example 7-5 Dynamic SQL with BULK COLLECT INTO Clause You can bind define variables in a dynamic query using the BULK COLLECT INTO clause
I could have a common method which is responsible for reading the connection string and creating an instance, but then you would need to know about that method, which is now even further away from the default constructor. I for one would like to be able to trap this event so that I can store the original value prior to the change and thus enable undo functionality from within a base class, but with the event being fired without any valid arguments it is practically useless
If you are not using savepoiny, then simply use the following statement to rollback all the changes: ROLLBACK; Savepoints Savepoints are sort of markers that help in splitting a long transaction into smaller units by setting some checkpoints. Flow Diagram: IF-THEN-ELSE Statement A sequence of IF-THEN statements can be followed by an optional sequence of ELSE statements, which execute when the condition is FALSE
SQL SERVER Reporting Services(SSRS) Tips
http://ssrstips.blogspot.com/ Competition: lowIf explicit axis settings are not specified, the y-axis uses the auto-scale mode as follows:The y-axis minimum value is determined based on the lowest y-value of all data points. In one of my future articles I will explain how to pass parameters to the class constructor and I will also tell something about SSRS and .Net Permissions
Adobe Flash Support - Adobe Flash Help from Adobe Flash Experts
See more videos Watch Video Tutorials Learn from the experts in these step by step tech training tutorials Excel for Beginners Tutorials WordPress Intermediate Series Introduction to PHP Windows Powershell Objective C Programming for... Watch Instructional Videos Learn from the experts in these step by step tech training tutorials Avoiding Bugs in Microsoft Access Top Ten Best New Features in Visio 2010 Organize Your Visio Diagrams with Containers and Lists How To: Using Objects, Properties, Events and Methods in Micro..
Before continuing with the performance comparison, I suggest you to change the database context to AdventureWorks and also enable STATISTICS IO settings on for performance comparison. One of the software developers here was trying to calculate some fields having integer values and divide it which gave incorrect results in integer where accurate results including decimals was expected
Is there a best practice we should follow for the order we list the tables in the ON clause? Note from the Author or Editor:No, the order doesn't matter. Note from the Author or Editor:The code sample in practice Exercise 1 part 6 has the recommended form; namely, the object type should be specified and both inputs should be Unicode literals with the N prefix
MS Excel Support - MS Excel Help from MS Excel Experts
See more videos Watch Video Tutorials Learn from the experts in these step by step tech training tutorials Excel for Beginners Tutorials WordPress Intermediate Series Introduction to PHP Windows Powershell Objective C Programming for... Watch Instructional Videos Learn from the experts in these step by step tech training tutorials Avoiding Bugs in Microsoft Access Top Ten Best New Features in Visio 2010 Organize Your Visio Diagrams with Containers and Lists How To: Using Objects, Properties, Events and Methods in Micro..
This particular page is a hacker's paradise because it can be hijacked by the astute hacker to reveal secret information, change data in the database, damage the database records, and even create new database user accounts. Then the URL and the hidden field need to be modified, and the source executed.If this is a true vulnerability, the additional information after the apostrophe will be treated as a part of the query string submitted to the SQL server and will be executed by the back end.Evaluate the ErrorsIf a hacker knows what to look for, error pages are a great tool to diagnose and refine hacking attempts because of the information they can provide
As we will see in Access 2000, we can build a QBE query, and by clicking on an 'SQL icon' we will reveal the Access SQL code which was automatically created. Set Default Update This is similar to On Update Set Null except that it sets the entries in child tables to a predefined default value assuming there is one
23, 2013 blog Integrating MongoDB and Open Source Data Stores with Power Pivot Business users don't care where data is stored or where it's coming from. Sometimes a single query with 20 joins will perform just fine, and a query with 4 joins will actually perform better if split into steps that fill temp tables that are then joined
Use a warning like this: Warning: Do not reply to or forward this report in an email - Outlook may slow down or even hang Data Layout - Do you use expressions to show the correct scale on charts? In Reporting Services 2005 you can use an expression to specify the scale of your charts. Figure: SSW SQL Reporting Services Auditor SSW SQL Reporting Services Auditor is Web-Application that iterates through all the reports on a report server and shows whether they have rendered correctly or if any errors occurred
For most DBMS, doubling the single-quote character is the default means of escaping a single-quote; but, for example, mySQL uses a backslash as the escape character. (Not unique to concatenating strings, but is true of any raw SQL query.) prone to failure for every last name input like O'Connor (or similar surname), possessive, or contracted input
How is your SQL Agent service account mapped to a login? Is it through a group (default) or you have a login for it? If you only have it through a group, trying creating a login for the account itself and then try running the job again
How To: Protect From SQL Injection in ASP.NET
Review Your Application's Use of Parameterized Stored Procedures Because using stored procedures with parameters does not necessarily prevent SQL injection, you should review your application's use of this type of stored procedure. Additional Resources How To: Prevent Cross-Site Scripting in ASP.NET How To: Protect From Injection Attacks in ASP.NET How To: Use Regular Expressions to Constrain Input in ASP.NET Feedback Provide feedback by using either a Wiki or e-mail: Wiki
PostgreSQL for Beginners
As well as count, min, max and sum mentioned above other commonly used aggregates are avg (average) and stddev (standard deviation, a statistical measure of variability). In an earlier post, we normalized our ceos table into two tables, one table to list the set of unique people and a second table to associate a person with a term as CEO
MySQL :: MySQL 5.5 Reference Manual :: 5.1.3 Server Command Options
By default, the option is off and only UDFs that have at least one auxiliary symbol can be loaded; this prevents attempts at loading functions from shared object files other than those containing legitimate UDFs. You must not try to use this option on a system that does not support the mlockall() system call; if you do so, mysqld will very likely crash as soon as you try to start it
AS400 Iseries
http://www.as400blog.blogspot.com/ Competition: lowFor instance you may have a Close Of Business process or an overnight batch run that does you major updates and reporting, and have certain jobs that need to run before or after other jobs, but the built in job scheduler doesnt have anything that handles that. You do have to be careful doing an immediate submit of a job though as if you setup your job in the default way, then immediate submits will use the current library list settings from your job
SQL - Wikipedia, the free encyclopedia
Until 1996, the National Institute of Standards and Technology (NIST) data management standards program certified SQL DBMS compliance with the SQL standard. CTEs can be also be recursive by referring to themselves; the resulting mechanism allows tree or graph traversals (when represented as relations), and more generally fixpoint computations
Transact-SQL Syntax Conventions (Transact-SQL)
This convention is used to group and label sections of lengthy syntax or a unit of syntax that can be used in more than one location within a statement. When referencing a specific object, you do not always have to specify the server, database, and schema for the SQL Server Database Engine to identify the object
SQLite Frequently Asked Questions
It is true that Informix and Microsoft SQL Server use interpretation (2), however we the SQLite developers hold that interpretation (1) is the most natural reading of the requirement and we also want to maximize compatibility with other SQL database engines, and most other database engines also go with (1), so that is what SQLite does. (16) Why does ROUND(9.95,1) return 9.9 instead of 10.0? Shouldn't 9.95 round up? SQLite uses binary arithmetic and in binary, there is no way to write 9.95 in a finite number of bits
Here I will just drop two keywords: SQL Injection and Query-Plan Reuse.) Nonetheless, in many shops the mandate is that you should use stored procedures. You would still have one set of procedures per table, but the code would be in one single include file.) SELECT * FROM sales + @yymm This is a variation of the previous case, where there is a suite of tables that actually do describe the same entity
In Sql server, when should you use GO and when should you use semi-colon ;? - Stack Overflow
CREATE DEFAULT, CREATE FUNCTION, CREATE PROCEDURE, CREATE RULE, CREATE TRIGGER, and CREATE VIEW statements cannot be combined with other statements in a batch. This is defined in the SQL Standards, Sure, more often than not SQL Server allows you to be sloppy and omit it but why get into bad habits? ;) As others have pointed out, the statement preceding a common table expression (CTE) must be terminated with a semi-colon
MySQL :: MySQL 5.1 Reference Manual :: 5.1.3 Server Command Options
By default, the option is off and only UDFs that have at least one auxiliary symbol can be loaded; this prevents attempts at loading functions from shared object files other than those containing legitimate UDFs. You must not try to use this option on a system that does not support the mlockall() system call; if you do so, mysqld will very likely crash as soon as you try to start it
An Unofficial Raspberry Pi Blog: Getting started with Databases on the Pi with SQLite
Obviously SQLite may not be the perfect choice for every project and if you want to read up some more about if it will be suitable for your particular project check out the Appropriate Uses of SQLite page on their website. Boot your Pi up to the command line (or if you are already in the graphical interface open LXTerminal) and type: sudo apt-get install sqlite3 Wait while it downloads and installs; and you are done
It could also have been declared as type float or even string, because Oracle supports conversions from each of these datatypes to NUMBER (the datatype of the empno column in the EMP table). -- Since the DECLARE statements are directives (no code is -- generated), they may be placed with variable declarations -- but must be present within the same physical file as the -- remaining cursor operations (i.e
When should I use semicolons in SQL Server? - Stack Overflow
In all programming, if we can adhere to a Standard without loss of functionality, we should, because then neither our code or our habits are tied to one proprietary vendor. (See TheTXI's answer above for the required list.) Since the compiler doesn't require them, you can put them all over, but why? The compiler won't tell you where you forgot one, so you'll end up with inconsistent use
Suppose that I have a more specialized requirement: I want to display (or in some other way process) all column information for rows that contain a date column with a value within a certain range. The string may contain placeholders for bind arguments, but you cannot use bind values to pass in the names of schema objects, such as table names or column names
7 Performing SQL Operations with Native Dynamic SQL
You cannot concatenate the subscripted elements directly into the string argument to EXECUTE IMMEDIATE; for example, you cannot build a collection of table names and write a FORALL statement where each iteration applies to a different table. Examples of Dynamic Bulk Binds Example 7-5 Dynamic SQL with BULK COLLECT INTO Clause You can bind define variables in a dynamic query using the BULK COLLECT INTO clause
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