i want an SQL query to get column names from a tableand store each column name in a different variablei found one queryselect column_name,* from information_schema.columns where table_name = 'Table_Name'order by ordinal_positionAll replies (14)...
astypelengthfromsys.columns a leftjoinsys.types bona.system_type_id=b.system_type_id and a.user_type_id=b.user_type_idwherea.object_id =(selectobject_idfromsys.objectswherename ='Address')
derived_table可用來作為外部查詢的輸入。 derived_table 可以使用 Transact-SQL 資料表值建構函式功能來指定多個資料列。 例如: SELECT * FROM (VALUES (1, 2), (3, 4), (5, 6), (7, 8), (9, 10) ) AS MyTable(a, b);。 如需詳細資訊,請參閱資料表值建構函式 (Transact-SQL)。 column_...
今天早上心血来潮,又想到这个事情,于是google了一下(用英文查询:how to get column names from oracle cursor),发现还真有办法获取未知结构的动态游标!看来在这方面百度还是太弱啊!技术问题还是得问google。 整理之后,结论如下: 1、如果给的是一个查询SQL文本,那么事情很容易(对于9i及以上版本),只要使用dbms_sql...
Get all columns from a particular table: In[5]:= Out[5]= Here is another way: In[6]:= Out[6]= Get columns whose names begin with "V" from all tables: Out[7]= Equivalently: In[8]:= Out[8]= Here is another way: In[9]:= ...
T-SQL GETDATE() ? ADD and SUBTRACT depending on the condition is CASE STATEMENT ADD COLUMN to variable table? Add prefix in data column Add Time in SQL HH:MM:SS to another HH:MM:SS Adding a column to a large (100 million rows) table with default constraint adding a extra column ...
getSelectBody(); // 转换为更细化的Select对象 plainSelect.setWhere(equalsTo); System.err.println(plainSelect);// SELECT * FROM test WHERE test.user_id = '123456' // WHERE != <> NotEqualsTo notEqualsTo = new NotEqualsTo(); notEqualsTo.setLeftExpression(new Column(table, "user_id")...
Expressionable<Order> exp =newExpressionable<Order>();foreach(variteminnames) { exp.Or(it => it.Name.Contains(item.ToString())); }varlist= db.Queryable<Order>().Where(exp.ToExpression()).ToList(); SELECT[Id],[Name],[Price],[CreateTime],[CustomId]FROM[Order]WHERE( ...
Simple CREATE TABLE syntax (common if not using options): syntaxsql Copy CREATE TABLE { database_name.schema_name.table_name | schema_name.table_name | table_name } ( { <column_definition> } [ ,... n ] ) [ ; ] Full syntax Disk-based CREATE TABLE syntax: syntaxsql Copy CREATE...
getChild(0).getText(); } public List<String> getTableNames() { return tableNames; } } 测试一下上述逻辑,测试代码如下: public class TableNameExtractorTest { @Test public void testExtractTableName() { String sqlText = "SELECT A,B FROM T1 WHERE C='pioneeryi'"; TableNameExtractor extractor ...