Examples of using Select statement in English and their translations into Chinese
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There sure are a lot of SELECT statements going on.
Each SELECT statement must have the same number of columns.
To describe a set of data by using SQL, you write a SELECT statement.
All Select Statements must have the same number of columns.
To describe a set of data by using SQL, you write a SELECT statement.
The columns in each SELECT statement must be in the same order.
The UNION operatoris used to combine the result set of two or more SELECT statements.
The SELECT statement cannot refer to system variables or user-defined variables.
MySQL quickly detects that some SELECT statements are impossible and returns no rows.
Each SELECT statement within the UNION must have the same number of columns.
The basic SQL syntax for a union query that combines two SELECT statements is as follows:.
Notice that each SELECT statement within the UNION must have the same number of columns.
SimpleDB also provides aquery language which is similar to the SQL Select statement.
If you enter this SELECT statement, then press Enter and wait for the result, nothing happens.
In Structured Query Language(SQL),queries are almost always made using the SELECT statement.
You can use the other clauses in a SELECT statement to further restrict and organize your returned data.
He SQL UNIONclause/operator is used to combine the results of two or more SELECT statements.
A SELECT statement contains a complete description of a set of data that you want to obtain from a database.
If the LIMIT or OFFSET clause is specified, the SELECT statement only returns a subset of the result rows.
The column names in the result-set of a UNION arealways equal to the column names in the first SELECT statement in the UNION.
You can include multiple tables in your SELECT statement in very similar way as you use them in normal SQL.
(For SELECT statements, a portal is equivalent to an open cursor, but we choose to use a different term since cursors don't handle non-SELECT statements.). .
It is used inconjunction with the Command class to execute an SQL Select statement and then access the returned rows.
The examples use SELECT statements, but the same optimizations apply for WHERE clauses in DELETE and UPDATE statements. .
The PostgreSQL UNIONclause/operator is used to combine the results of two or more SELECT statements without returning any duplicate rows.
Currently, only simple SELECT statements are supported, but a ticket has been filed to add support for more complex SELECT statements.
The PostgreSQL UNIONclause/operator is used to combine the results of two or more SELECT statements without returning any duplicate rows.
In the OPENQUERY syntax, the second SELECT statement('SELECT* FROM Customers') is passed to the SQL Anywhere server for execution.
Throughout the documentation, SELECT statements and other SQL statements appear with each clause on a separate row, and with the SQL keywords in uppercase.