The above SQL command selects all the customers from theCustomerstable havingfirst_nameJohn. 2. Greater than (>) -- select all columns from Customers table with age greater than 25SELECT*FROMCustomersWHEREage >25; Run Code The above SQL command selects all the customers from theCustomerstable...
Examples See Also Retrieves data from one or more tables. When you use SQL SELECT to create a query, Visual FoxPro parses the query and retrieves the specified data from the tables. You can create a SQL SELECT query from the Command window, in a Visual FoxPro program, or using the ...
SELECT TOP 2 first_name, last_name FROM Customers; Here, the SQL command selects first_name and last_name of the first 2 rows. We can also use * with TOP to select all columns. SELECT TOP 2 * FROM Customers; Here, the SQL command selects the first 2 rows from the table. Examp...
Examples See Also The SQL SELECT clause specifies the fields, constants, and expressions to display in the query results.For the complete syntax, see SELECT - SQL Command.The detailed syntax for the SELECT clause is as follows:複製 SELECT [ALL | DISTINCT] [TOP nExpr [PERCENT]] Select_Li...
For more information and examples about filter conditions, see Filter Conditions for Queries and Views. Remarks The following code shows a summary of the main clauses of the SELECT - SQL Command: Copy SELECT Select_List FROM Table_List ...[WITH (BUFFERING = lExpr)] [WHERE Conditions] [GR...
(_), by using the ESCAPE clause in the WHERE clause. In the ESCAPE clause, you can specify a character that, when placed immediately before the wildcard character, indicates that the wildcard character be treated as a literal character. For more information and examples, seeFilter Conditions ...
The SELECT command is undoubtedly the query most frequently used by developers and data experts. As its name suggests, it is used to select data. To do this, the query takes the following form: SELECT column name FROM table name. You can also select multiple columns within the same table....
SELECT语句中的算术表达式和空值 首先介绍显示表结构的命令 DESCRIBEcommand 描述命令:显示表结构 isplaying the Table Structure You can display the structure of a table by using the DESCRIBE command. The command displays the column names and the data types, and it shows you whether a column must cont...
Usage: sqlcmd [flags] sqlcmd [command] Examples: # Install/Create, Query, Uninstall SQL Server sqlcmd create mssql --accept-eula --using https://aka.ms/AdventureWorksLT.bak sqlcmd open ads sqlcmd query "SELECT @@version" sqlcmd delete # View configuration information and connection strings...
SELECT语句中的算术表达式和空值 首先介绍显示表结构的命令 DESCRIBEcommand 描述命令:显示表结构 isplaying the Table Structure You can display the structure of a table by using the DESCRIBE command. The command displays the column names and the data types, and it shows you whether a column must cont...