For the complete syntax for the CREATE TABLE statement, refer to the database manuals: Oracle SQL Server MySQL PostgreSQL How Long Can A Table Name Be in SQL? The length of a table name depends on the database you’re using: Oracle (before v12.2): 30 characters Oracle (after v12.2): ...
ALTER TABLE PARTITION modifies table partitions, including adding, deleting, splitting, merging, clearing, swapping, and renaming partitions, moving partition tablespaces
SQL CREATE INDEX Statement To create an index on a database table, SQL provides the CREATE INDEX statement. Following is the syntax − CREATEUNIQUEINDEXindex_nameONtable_name(column1,column2,...columnN); Let us create an index for the column named 'NAME' in the existing CUSTOMERS table ...
Data definition language (DDL) is used to define or modify an object in a database, such as a table, index, or view.GaussDB(DWS) does not support DDL if its CN is unavail
In this page, we list the SQL syntax for each of the SQL commands in this tutorial, making this an easy reference for someone to learn SQL. For detailed explanations of each SQL syntax, please go to the individual section by clicking on the keyword.The...
Table 1 Policy for SQL syntaxes to support unplanned ALT Classification SQL Syntax Policy Remarks DML SELECT Partially supported The syntax itself has no restriction. Check whether the accessed tables and functions are supported. DML INSERT Partially supported Temporary tables and unlogged tables...
You can rename a table or a column temporarily by giving another name, which is known as ALIAS. The use of table aliases means to rename a table in a particular PostgreSQL statement. Renaming is a temporary change and the actual table name does not change in the database....
14.1.8.2 ALTER TABLE Online Operations in MySQL Cluster 14.1.8.4 ALTER TABLE Examples 14.1.9 ALTER TABLESPACE Syntax ALTER TABLESPACEis useful only with Disk Data storage for MySQL Cluster. 14.1.10 ALTER VIEW Syntax userview_name column_list ...
Msg 102, Level 15, State 1, Line 7 Incorrect syntax near 'RENAME'. This above error keeps occurring as I try to rename a column in my table syntax ALTER TABLE Project RENAME COLUMN ProjectNO to Project_NO;
Section 1.7.1, “MySQL Extensions to Standard SQL” Section 6.6.9, “mysqlbinlog — Utility for Processing Binary Log Files” Section 6.5.4, “mysqldump — A Database Backup Program” Section 19.1.6.3, “Replica Server Options and Variables” Section 7.1.8, “Server System Variables”ALTER...