SQL Format in .NET framework

Maker EAN13 in .NET framework SQL Format

SQL Format
Read GS1 - 13 In .NET Framework
Using Barcode Control SDK for Visual Studio .NET Control to generate, create, read, scan barcode image in .NET framework applications.
Encode European Article Number 13 In .NET
Using Barcode generation for .NET Control to generate, create GTIN - 13 image in .NET framework applications.
The main feature of SQL is that it provides a standard way of defining commands that the database engine can understand A SQL command (also called a statement) consists of tokens, separated by white space, and terminated by a semicolon (although PostgreSQL
Scanning GS1 - 13 In .NET Framework
Using Barcode reader for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
Barcode Generation In Visual Studio .NET
Using Barcode maker for .NET framework Control to generate, create bar code image in .NET framework applications.
6:
Scanning Barcode In .NET Framework
Using Barcode decoder for .NET framework Control to read, scan read, scan image in Visual Studio .NET applications.
EAN-13 Drawer In C#
Using Barcode encoder for VS .NET Control to generate, create EAN 13 image in .NET applications.
Using Basic SQL
EAN 13 Generation In .NET
Using Barcode creation for ASP.NET Control to generate, create UPC - 13 image in ASP.NET applications.
GTIN - 13 Encoder In Visual Basic .NET
Using Barcode maker for .NET framework Control to generate, create UPC - 13 image in .NET applications.
can be configured to allow a SQL statement to be terminated by pressing the enter key, defined in the postgresqlconf file) The command tokens identify actions, and data used in the command They consist of : Keywords Identifiers Literals
Make Barcode In Visual Studio .NET
Using Barcode creator for Visual Studio .NET Control to generate, create bar code image in .NET framework applications.
Code-128 Generator In .NET
Using Barcode drawer for .NET Control to generate, create USS Code 128 image in VS .NET applications.
SQL Keywords
Encode UPC A In .NET
Using Barcode encoder for Visual Studio .NET Control to generate, create UPC-A Supplement 2 image in VS .NET applications.
ISSN - 13 Printer In Visual Studio .NET
Using Barcode drawer for VS .NET Control to generate, create ISSN - 10 image in .NET applications.
SQL keywords define the actions the database engine takes based on the SQL statement Table 6-1 lists and describes the standard SQL keywords supported by PostgreSQL
DataMatrix Recognizer In None
Using Barcode decoder for Software Control to read, scan read, scan image in Software applications.
Encoding Bar Code In Visual Studio .NET
Using Barcode maker for Reporting Service Control to generate, create barcode image in Reporting Service applications.
SQL Keyword ALTER CLOSE COMMIT CREATE DELETE DROP END GRANT INSERT RELEASE REVOKE ROLLBACK SAVEPOINT
Barcode Maker In Objective-C
Using Barcode creator for iPhone Control to generate, create bar code image in iPhone applications.
Print Code 128B In Visual Basic .NET
Using Barcode generator for VS .NET Control to generate, create Code 128C image in Visual Studio .NET applications.
Description Change (alter) the characteristics of an object Remove (close) an active cursor in a transaction or session Commit a transaction to the database Create objects Remove database data from a table Remove an object from the database Define the end of a transaction Set object privileges for users Add data to a table Delete a savepoint defined in a transaction Remove object privileges from users Undo a transaction Define a point in a transaction where commands can be rolled back This allows transactions within transactions Query database table data Start a set of database commands as a block Alter database data stored in a table
Barcode Reader In Visual Studio .NET
Using Barcode Control SDK for ASP.NET Control to generate, create, read, scan barcode image in ASP.NET applications.
2D Barcode Generation In C#
Using Barcode creation for VS .NET Control to generate, create Matrix 2D Barcode image in Visual Studio .NET applications.
SELECT START TRANSACTION UPDATE
USS-128 Generator In Objective-C
Using Barcode encoder for iPhone Control to generate, create UCC - 12 image in iPhone applications.
Generate European Article Number 13 In .NET Framework
Using Barcode generator for Reporting Service Control to generate, create EAN-13 image in Reporting Service applications.
Table 6-1 Standard SQL Keywords
PostgreSQL 8 for Windows
These standard SQL keywords are common among all database products that follow the ANSI SQL standards However, besides the standard ANSI SQL commands, many database vendors implement nonstandard commands to augment the standard commands and to differentiate their product from others Besides the standard SQL keywords, PostgreSQL provides a few nonstandard SQL keywords, listed and described in Table 6-2 SQL keywords are case insensitive in PostgreSQL You can enter keywords in any case (including mixed case) and PostgreSQL will interpret them properly Besides these keywords there are also modifying keywords, such as FROM, WHERE, HAVING, GROUP BY, and ORDER BY These keywords are used to modify the command defined in the main keyword The various modifying keywords are described later in this chapter as the main keywords are introduced
SQL Identifiers
SQL command identifiers define database objects used in the command This is most often a database name, schema name, or table name Identifiers are case sensitive in PostgreSQL, so you must take extreme care to enter the case correctly By default, PostgreSQL changes all unquoted identifiers to all lowercase Thus the identifiers Customer, CUSTOMER, and CusTomer all become customer to PostgreSQL To use uppercase letters in an identifier, you must use double quotes around the individual identifiers For example, to reference the table Customer in the schema store, you must type store"Customer" in the SQL statement However, to reference the table Customer in the schema Store, you must type "Store""Customer" in the SQL statement Also, identifier names cannot be keywords Thus, you cannot create a table named select and expect to use it in a SQL statement as
SELECT * from SELECT;
This will produce an error message from PostgreSQL However, you can get around this rule by using a quoted identifier PostgreSQL allows you to reference a table called select by using the format "select" The SQL statement
SELECT * from "select";
is perfectly permissible in PostgreSQL While this is perfectly legal in PostgreSQL, this format is not supported by all database systems, and using keywords as table names is an extremely bad habit to acquire Try to avoid using keywords as identifiers at all cost
SQL Literals
SQL command literals define data values referenced by the keyword command These are constant values, such as data that is to be inserted into tables, or data values for referencing queries Literals can be any type of data supported by PostgreSQL There are hundreds of various data types recognized by PostgreSQL (as demonstrated in 4)
6:
Copyright © OnBarcode.com . All rights reserved.