SQL Pseudocolumns and Functions SQL recognizes the pseudocolumns in Table 3-2, which return specific data items: Table 3-2 Pseudocolumns and Internal Datatypes Pseudocolumn Internal Datatype CURRVAL NUMBER LEVEL NUMBER NEXTVAL NUMBER ROWID ROWID ROWLABEL MLSLABEL ROWNUM NUMBER Pseudocolumns are not ...
A possible value for the column PSEUDO_COLUMN in the ResultSet object returned by the method getVersionColumns. Java documentation for java.sql.DatabaseMetaData.versionColumnPseudo. Portions of this page are modifications based on work created and shared by the Android Open Source Project and used ...
1 Introduction to Oracle SQL 2 Basic Elements of Oracle SQL 3 Pseudocolumns Hierarchical Query Pseudocolumns Sequence Pseudocolumns Version Query Pseudocolumns COLUMN_VALUE Pseudocolumn OBJECT_ID Pseudocolumn OBJECT_VALUE Pseudocolumn ORA_ROWSCN Pseudocolumn ROWID Pseudocolumn ROWNUM Pseudocolumn XMLDATA Ps...
1 Introduction to Oracle SQL 2 Basic Elements of Oracle SQL 3 Pseudocolumns Hierarchical Query Pseudocolumns Sequence Pseudocolumns Version Query Pseudocolumns COLUMN_VALUE Pseudocolumn OBJECT_ID Pseudocolumn OBJECT_VALUE Pseudocolumn ORA_ROWSCN Pseudocolumn ROWID Pseudocolumn ROWNUM Pseudocolumn XMLDATA Ps...
Pseudocolumns are virtual columns or expression calculators, the expression being a constant or another expression.Gavin PowellCarol McCullough-DieterOracle SQL: Jumpstart with Examples
Pseudocolumns Operators Expressions Conditions Common SQL DDL Clauses SQL Queries and Subqueries PL/SQL Language System Functions System Views Advanced Packages User Roles and Permissions Deployment Solutions Technical Specifications GaussDB Constraints
The database partition number returned on transition variables and tables is derived from the current transition values of the distribution key columns. Before an unqualified reference to 'DATASLICEID' is translated as a NODENUMBER() function, an attempt is made to resolve the reference to one of...
setspectrum_enable_pseudo_columnstofalse; Discover highly rated pages Abstracts generated by AI Redshift › mgmt Configuring an ODBC driver version 1.x connection ODBC driver configuration enables Amazon Redshift cluster connection from third-party SQL client tools. Covers ODBC driver installation, ver...
java.sql.PseudoColumnUsage 实现的所有接口 Serializable, Comparable<PseudoColumnUsage> public enum PseudoColumnUsage extends Enum<PseudoColumnUsage> 伪/隐藏列使用的枚举。 从以下版本开始: 1.7 另请参见: DatabaseMetaData.getPseudoColumns(java.lang.String, java.lang.String, java.lang.String, ...
SQL> DESCRIBE company_employees Name Null? Type ——— ——— EMPLOYEE_ID NOT NULL NUMBER(38) LAST_NAME VARCHAR2(100) SALARY NUMBER Each row in the table consists of three columns, and each column has its own data type. The following query retrieves all the columns in all the rows in...