PostgreSQL also provides some operators that mirror the functionality of LIKE, NOT LIKE, ILIKE, NOT ILIKE, as shown in the following table: OperatorEquivalent ~~ LIKE ~~* ILIKE !~~ NOT LIKE !~~* NOT ILIKE For example, the following statement uses the ~~ operator to find a customer whose...
SQL语句:statement:Seq[String]、parameters: Seq[Option[Seq[Any]]] 下面就是JDBCContext类型定义: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 import java.sql.PreparedStatement import scala.collection.generic.CanBuildFrom import scalikejdbc._ object JDBCContext { type SQLTYPE = Int val SQL_SELE...
ctx.batch) throw new IllegalStateException("JDBCContex setting error: only supported in batch update commands!") ctx.copy( returnGeneratedKey = if (returnKey) Seq(Some(1)) else Nil ) } def setDDLCommand(_statement: String, _parameters: Any*): JDBCContext = { ctx.copy( statements = Seq...
サポートされていない PostgreSQL 機能 サポートされていない PostgreSQL データ型 サポートされていない PostgreSQL 関数 SQL の使用 SQL リファレンスの規則 基本的要素 名前と識別子 リテラル Null データ型 数値型 数値に関する計算 整数リテラルと浮動小数点リテラル 数値型を使用する例 文...
If we want to extract those rows which contain the first_name with the letter 'y' in any position from employees table , the following statement can be used. postgres=# SELECT first_name postgres-# FROM employees postgres-# WHERE first_name LIKE'%y%'; ...
The effect of the rollback is as if the statement had never been run. In PostgreSQL the transaction cannot continue when you encounter an error and the entire work done in the transaction is rolled back. Oracle or DB2 have implicit savepoint before each statement execution which allow a roll...
;preparestatement.setString(1,"%"+currentUser.name+"%");一般是这么写的,但是我用的通用类,这样就所有的都是模糊查询的了。怎么把?处改一下,Object[] params={name};ps... 分享5赞 广东信息科技职业培...吧 皌泱丿空白式 MySQL常用的5种查询将排除“老1”到“老4”,寻找“老5”、“老6”、…...
statement: String, parameters: Seq[Any]=Nil, fetchSize: Int=100, autoCommit: Boolean=false, queryTimeout: Option[Int]=None, extractor: WrappedResultSet=> M) 由于我们会将JDBCQueryContext传给JDBC-Engine去运算,所以Streaming函数的所有参数都必须明确定义,包括extractor函数。实际上JDBCQueryContext也完全满足...
Uses the same logic in insertion and update: handle default values in a coherent manner Uses GORM models and conventions (partially, seeDifferences) Exploits PostgreSQLRETURNINGstatement to update models fields with the updated values (even when changed on db side; e.g. when having a default valu...
SQL语句:statement:Seq[String]、parameters: Seq[Option[Seq[Any]]] 下面就是JDBCContext类型定义: import java.sql.PreparedStatement import scala.collection.generic.CanBuildFrom import scalikejdbc._objectJDBCContext { type SQLTYPE=Int val SQL_SELECT: Int=0val SQL_EXECUTE=1val SQL_UPDATE=2def return...