An SQL variable or global variable with a weakly typed cursor data type that was created or declared with a CONSTANT clause specifying a select-statement where all the result columns are named. If the cursor type of the cursor variable is not strongly rtyped using a named row type, the dat...
One of the most important reasons for IT professionals to be familiar with these rules is that they can be used to simplify SQL WHERE clauses. For example, suppose we had the clause: WHERE dcode=A OR (dcode=Y AND status=Gold) OR (NOT-dcode=A AND status=Silver) Written against a ...
aThe expression specified with the WhereClause property is a SQL query. 表示指定与WhereClause物产是SQL询问。[translate] a河南省隧道技术与装备院士工作站 河南省隧道技术与装备院士工作站[translate] a雷达天线罩 Radome[translate] aI care about is you 我关心是您[translate] ...
,SQLSTATEVALUEstringSQL-condition-name general-condition-value ,SQLEXCEPTIONSQLWARNINGNOT FOUND3 data-type built-in-typedistinct-type-name Notes: 1 The DEFAULT and NOT NULL clauses can be specified in either order. 2 specific-condition-value and general-condition-value cannot be specified in the ...
Where, thePRIORoperator is used for theCONNECT BYclause in a hierarchical query. You can use any built-in function as an expression. However, inappropriate combinations of functions in compound expressions will be deprecated. For example, theLENGTH()function is inappropriate for aggregate functions....
* Compile an insert statement into SQL.* * @param \Illuminate\Database\Query\Builder $query * @param array $values * @return string */ public function compileInsert(Builder $query, array $values) { // Essentially we will force every insert to be treated as a batch insert which...
The latter often consist of unoptimized SQL code that is insignificant in value to the business. Can you VACUUM REINDEX when needed? When using an INTERLEAVED SORTKEY, the sorted order of data is determined based on metadata called z-indexes and z-compressors as ...
CREATE trigger_name FOR dml_event_clause ON view_name COMPOUND TRIGGER INSTEAD OF EACH ROW IS BEGIN sql_statement; END INSTEAD OF EACH ROW; The declarative part (optional) of a compound DML trigger defines variables and subprograms. When the trigger fires, the declarative part runs first, and...
複合ステートメントは、他のステートメントを 1 つの SQL プロシージャーの中にグループとしてまとめます。 複合ステートメントによって、SQL 変数、カーソル、および条件ハンドラーを宣言することができます。 構文 .-NOT ATOMIC-. >>-+---+--BEGIN--+---+---> '-label:-' '-...
An SQL variable or global variable with a weakly typed cursor data type that was created or declared with a CONSTANT clause specifying a select-statement where all the result columns are named. If the cursor type of the cursor variable is not strongly rtyped using a named row type, the dat...