// 代码1val spark=SparkSession.builder.appName("SparkSQL Test").master("local[4]").getOrCreate()spark.sql("select * from table").show(false)---// 代码2defsql(sqlText:String):DataFrame={Dataset.ofRows(self,sessionState.sqlParser.parsePlan(sqlText))}---// 代码3override defparsePlan(...
复制 StringdbType=JdbcConstants.MYSQL;List<SQLStatement>statementList=SQLUtils.parseStatements(sql,dbType); 1. 2. SQLUtils的parseStatements方法会把你传入的SQL语句给解析成SQLStatement对象集合,每一个SQLStatement代表一条完整的SQL语句,如: 复制 SELECTidFROMuserWHEREstatus=1 1. 多个SQLStatement,如: 复制 ...
parse(sql_5); if (statement instanceof CreateTable) { Table table = ((CreateTable) statement).getTable(); System.out.println(table); Select select = ((CreateTable) statement).getSelect(); if (select != null){ String s = select.toString(); testSimpleSelectSql(s); } } } catch (...
1.parse def parse(sql, encoding=None):"""Parse sql and return a list of statements.:param sql: A string containing one or more SQL statements.:param encoding: The encoding of the statement (optional).:returns: A tuple of :class:`~sqlparse.sql.Statement` instances."""return tuple(parse...
String dbType =JdbcConstants.MYSQL; List<SQLStatement> statementList = SQLUtils.parseStatements(sql, dbType); SQLUtils的parseStatements方法会把你传入的SQL语句给解析成SQLStatement对象集合,每一个SQLStatement代表一条完整的SQL语句,如: SELECTidFROMuserWHEREstatus=1 ...
這個成員會覆寫 TSqlParser.ParseStatementList(TextReader, IList<ParseError>%, Int32, Int32, Int32)。 命名空間: Microsoft.Data.Schema.ScriptDom.Sql 組件: Microsoft.Data.Schema.ScriptDom.Sql (在 Microsoft.Data.Schema.ScriptDom.Sql.dll 中) 語法 VB 複製 '宣告 Public Overrides Function Pars...
SparkSession.sql() --> AbstractSqlParser.parsePlan() --> AbstractSqlParser.parse() 代码语言:javascript 代码运行次数:0 运行 AI代码解释 /** Creates LogicalPlan for a given SQL string. */ override def parsePlan(sqlText: String): LogicalPlan = parse(sqlText) { parser => val ctx = parse...
sqlparser.sqltext = "-- mysql\nSELECT `user`.name,\n `order`.price\nFROM `user`,\n `order`\nWHERE `user`.id = `order`.uid"; int ret = sqlparser.parse(); if (ret == 0) { TStatementList stmts = sqlparser.getSqlstatements(); ...
import{MySQL,MySqlParserVisitor}from'dt-sql-parser';constmysql=newMySQL();constsql=`select id, name from user1;`;constparseTree=mysql.parse(sql);classMyVisitorextendsMySqlParserVisitor<string>{defaultResult():string{return'';}aggregateResult(aggregate:string,nextResult:string):string{returnaggregate...
excel,csv等pandas dataframe表格的问答1.下载安装pipinstallpylmkit-Upipinstallpymysqlsqlalchemysqlparse...