See the Date(long) constructor of and the getTime() method of and use the latter as the argument in the former to get a instance. .jdbc4. String primaryKeyName = primaryKeys.getString("PK_NAME") That parse method is giving you a object, you need a object in the setDate method. String primaryKe圜olumnName = primaryKeys.getString("COLUMN_NAME") Each description contains many useful columns such as COLUMN_NAME, COLUMN_SIZE, and DATA_TYPE.īesides regular columns, we can also find out the primary key columns of a particular table: ResultSet primaryKeys = databaseMetaData.getPrimaryKeys(null, null, "CUSTOMER_ADDRESS") Here, the getColumns() call returns a ResultSet that we can iterate to find the description of each column.
Using this in addition to date and time values you can also get other date and time fields, such as day-of-year, day-of-week and week-of-year. String isAutoIncrement = columns.getString("IS_AUTOINCREMENT") The java.time package of Java8 provides a class named LocalDateTime is used to get the current value of local date and time. String isNullable = columns.getString("IS_NULLABLE") Then we take input of a field, of which we want to display record. First of all, we establish a connection between MYSQL and Java using Connection class, by creating an object named cn of this class.
Mysql jdbc get date fields how to#
String datatype = columns.getString("DATA_TYPE") How to display all records using JDBC in Java Note: To display data from MYSQL table, there should be at least one row of data must be available. It allows a Java programmer to issue SQL statements and process the results. VARCHAR (20) CHARACTER SET utf8 COLLATE utf8bin. Suppose that you have a column that accepts a character set and a collation in its specification and you specify a binary collation, such as: Press CTRL+C to copy. According to JavaSofts overview, 'The JDBC API defines Java classes to represent database connections, SQL statements, result sets, database metadata, etc. Connector/C++ may return different metadata for the same column, depending on the method you call. String columnSize = columns.getString("COLUMN_SIZE") JDBC (Java Database Connectivity) is a Java API developed by JavaSoft for executing SQL statements.
String columnName = columns.getString("COLUMN_NAME") Let's see this in action: ResultSet columns = databaseMetaData.getColumns(null,null, "CUSTOMER_ADDRESS", null) We can also extract the columns of a particular table using the same DatabaseMetaData object.