Get columns number sql

Get number of columns sql

SELECT TABLE_NAME , count(COLUMN_NAME)
FROM information_schema.columns
GROUP BY TABLE_NAME;

-- Oracle (depending on schema grants):
SELECT count(*) FROM USER_TAB_COLS WHERE TABLE_NAME = 'my_table';
SELECT count(*) FROM ALL_TAB_COLS WHERE TABLE_NAME = 'my_table';
SELECT count(*) FROM DBA_TAB_COLS WHERE TABLE_NAME = 'my_table';

Get columns number sql

//With JAVA

String quer="SELECT * FROM sample2 where 1=2";

Statement st=con.createStatement();
ResultSet rs=st.executeQuery(quer);
ResultSetMetaData rsmd = rs.getMetaData();
int NumOfCol=0;
NumOfCol=rsmd.getColumnCount();
System.out.println("Query Executed!! No of Colm="+NumOfCol);

Source: stackoverflow.com

Similar codes

0 vote331 views1 answer
New in t arrray java
Java
0 vote366 views2 answers
Java how to sort custom objects in descending orde
Java
4 votes326 views2 answers
Java round to nearest 5
Java
6 votes326 views2 answers
Java do while schleife
Java
0 vote340 views1 answer
Deserialize date java
Java
3 votes357 views1 answer
Reduce in stream in java
Java
0 vote361 views1 answer
Java 8 Functional Interfaces
Java
0 vote352 views2 answers
Java sha256 hex digest
Java
0 vote323 views2 answers
Quick way to get charAt
Java
-2 votes356 views2 answers
Ceil function in java
Java