SELECTName:'SELECT'Description: Syntax:SELECT[ALL | DISTINCT | DISTINCTROW][HIGH_PRIORITY][STRAIGHT_JOIN][SQL_SMALL_RESULT][SQL_BIG_RESULT][SQL_BUFFER_RESULT]SQL_NO_CACHE[SQL_CALC_FOUND_ROWS]select_expr[, select_expr ...][FROM table_references [PARTITION partition_list][WHERE where_condition]...
Selection(选择): A select operation selects a subset of rows (records) in a table (relation) that satisfy a selection condition. The ability to select rows from out of complete result set is called Selection. It involves conditional filtering and data staging. The subset can range from no r...
declare @x xml declare @v varchar(20) set @v='FirstName' set @x=' <ROOT rootID="2"> <FirstName>fname</FirstName> <LastName>lname</LastName> </ROOT>' SELECT @x.query(' if ( sql:variable("@v")="FirstName" ) then /ROOT/FirstName else /ROOT/LastName ') ...
statement_if_true: SQL statement(s) to execute if the condition is true. This can include SELECT, INSERT, UPDATE, DELETE, and other SQL statements. statement_if_false: SQL statement(s) to execute if the condition is false. It can also include any valid SQL statements.Example...
"SELECT INTO" with indexes? "Simple" SQL to check for alpha or numeric charcters isn't working right "String or binary data would be truncated.\r\nThe statement has been terminated." "String or binary data would be truncated" and field specifications “Unable to enlist in the transaction”...
问SQL IF/ELSE中的条件语句EN我试图在they中得到一个条件语句，根据微软的文档，这就是他们所拥有的：...
SQL_TIMESTAMP、SQL_TINYINT、 SQL_TSI_DAY、SQL_TSI_FRAC_SECOND、SQL_TSI_HOUR、SQL_TSI_MICROSECOND、SQL_TSI_MINUTE、SQL_TSI_MONTH、 SQL_TSI_QUARTER、 SQL_TSI_SECOND、SQL_TSI_WEEK、SQL_TSI_YEAR、SQL_VARBINARY、SQL_VARCHAR、STATE、STATEMENT、STRING_AGG、STRUCTURE、STYLE、SUBCLASS_ORIGIN、...
SqlCommand String 用于填充查找表的 SELECT 语句。 SqlCommandParam String 用于填充查找表的参数化 SQL 语句。 下表介绍查找转换的输入列的自定义属性。 所有属性均可读/写。 展开表 属性数据类型说明 CopyFromReferenceColumn String 从中复制列的引用表中的列的名称。 JoinToReferenceColumns String 源列所联...
min-evictable-idle-time-millis:600000max-evictable-idle-time-millis:900000# 用来测试连接是否可用的SQL语句,默认值每种数据库都不相同,这是mysqlvalidationQuery:select1# 应用向连接池申请连接,并且testOnBorrow为false时,连接池将会判断连接是否处于空闲状态,如果是,则验证这条连接是否可用testWhileIdle:true# 如果...
Summary: in this tutorial, you will learn how to use the PL/SQL SELECT INTO statement to fetch data of a single row from a table into variables. PL/SQL SELECT INTO statement is the simplest and fastest way to fetch a single row from a table into variables. The following illustrates the...