SQL ALL Keyword
ALL The ALL command returns true if all of the subquery values meet the condition. The following SQL statement returns TRUE and lists the productnames if ALL the records in the OrderDetails table has quantity = 10:
Tag sql server management studio
SQL ADD CONSTRAINT Keyword
ADD CONSTRAINT The ADD CONSTRAINT command is used to create a constraint after a table is already created. The following SQL adds a constraint named “PK_Person” that is a PRIMARY KEY constraint on multiple columns (ID and LastName):
SQL ADD Keyword
ADD The ADD command is used to add a column in an existing table.
SQL Keywords Reference
This SQL keywords reference contains the reserved words in SQL.
SQL Data Types for MySQL, SQL Server, and MS Access
The data type of a column defines what value the column can hold: integer, character, money, date and time, binary, and so on. SQL Data Types Each column in a database table is required to have a name and a…
SQL Hosting
SQL Hosting If you want your web site to be able to store and retrieve data from a database, your web server should have access to a database-system that uses the SQL language. If your web server is hosted by…
SQL Injection
SQL Injection SQL injection is a code injection technique that might destroy your database. SQL injection is one of the most common web hacking techniques. SQL injection is the placement of malicious code in SQL statements, via web page input.
SQL Views
SQL CREATE VIEW Statement In SQL, a view is a virtual table based on the result-set of an SQL statement. A view contains rows and columns, just like a real table. The fields in a view are fields from one…
SQL Working With Dates
SQL Dates The most difficult part when working with dates is to be sure that the format of the date you are trying to insert, matches the format of the date column in the database. As long as your data…