Enable/disable syntax for column constraints Tablespace options specified by partitioned tables DROP TABLE tablename [CASCADE CONSTRAINTS] [PURGE] Stored procedure dynamic SQL syntax EXECUTE IMMEDIATE. The current edition does not support dynamic execution of anonymous blocks with DECLARE. ...
Here, you can specify table constraints, which are called out of line constraints. They work in the same way as inline constraints, except you can’t specify NOT NULL constraints here. For example, you may want to add aprimary key or foreign keyhere. Now, there are a whole lot of para...
SQL - Rename Table SQL - Truncate Table SQL - Clone Tables SQL - Temporary Tables SQL - Alter Tables SQL - Drop Table SQL - Delete Table SQL - Constraints SQL Queries SQL - Insert Query SQL - Select Query SQL - Select Into SQL - Insert Into Select SQL - Update Query SQL - Delete ...
constraint_name is a name you choose for this particular rule or constraint. This part is optional – you don’t have to name your constraints, but it can be helpful, especially in larger databases. The […] around CONSTRAINT constraint_name shows that adding a constraint name is optional. ...
(for GDS Import and Export) CREATE FOREIGN TABLE (SQL on OBS or Hadoop) CREATE FOREIGN TABLE (for OBS Import and Export) CREATE FOREIGN TABLE (SQL on other GaussDB(DWS)) CREATE FUNCTION CREATE GROUP CREATE INDEX CREATE REDACTION POLICY CREATE ROW LEVEL SECURITY POLICY CREATE PROCEDURE CREATE ...
table but not the table itself. The DELETE statement only removes table data or rows specified in theWHERE clause. The DROP statement drops the existing database object; for example, it can delete the entire table along with its structure, data, privileges, indexes, constraints, and triggers....
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This issue is fixed in NDB 7.5.6. (Bug #82989, Bug #24666177) For more information, seeFOREIGN KEY Constraints, andFOREIGN KEY Constraints. NDB Cluster and geometry data types.Geometry data types (WKTandWKB) are supported forNDBtables. However, spatial indexes are not supported. ...
or Boolean value though SQL database offers a variety of literal values in a SQL program. For example 100, -120, 544.03, -458.25, 3E2, 5E-2 are valid numeric literals. 'USA', '2000', 'SQL Syntax', 'Jan 01, 1981' are valid character string (should enclosed by by single quotation ...
In this SQL tutorial, we will look at a common task of creating a database table. We will look at some do’s and don’ts while creating a simple table as well as adding constraints and schemas. We will also explain the steps that are required in the create table operation, what each...