| SqlHelper Methods |
The SqlHelper type exposes the following members.
Methods| Name | Description | |
|---|---|---|
  | AddColumnAlias |
Adds the column alias to the given expression
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| AddColumns |
Adds the columns.
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| AddOrderBy |
Adds the order by to an existing one.
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| AddWhereCondition(String, String) |
Adds where condition to the expression using AND operator.
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| AddWhereCondition(String, String, String) |
Adds where condition to the expression.
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| AppendQuery |
Combines the given queries with the operator
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| ApplyOver |
Applies the over clause to the given expression
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| BuildBigIntTable |
Gets a table-valued parameter for database calls. Is intended for usage with [Type_CMS_BigIntTable] database type.
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| BuildGuidTable |
Gets a table-valued parameter for database calls. Is intended for usage with [Type_CMS_GuidTable] database type.
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| BuildIntTable |
Gets a table-valued parameter for database calls. Is intended for usage with [Type_CMS_IntegerTable] database type.
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| BuildOrderedIntTable |
Gets a table-valued parameter for database calls. Is intended for usage with [Type_CMS_OrderedIntegerTable] database type.
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| BuildStringTable |
Gets a table-valued parameter for database calls. Is intended for usage with [Type_CMS_StringTable] database type.
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| CombineQueries |
Combines the given queries with the operators
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| EnsureFullName |
Ensures full name of the given column
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 | EnsureMissingColumns |
Ensures the missing columns in the given collection of QueryColumnList instances
and removes all occurrences of all columns selector in them
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| EscapeLikeQueryPatterns |
Escapes characters for query which use LIKE pattern.
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| EscapeLikeText |
Escapes characters for query which use LIKE pattern (%, _, [, ] and ^).
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| EscapeQuotes |
Escapes single quotes in string value used for SQL query (value's => value''s).
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| ExceptQueries |
Returns the query created as an EXCEPT of the given queries.
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| GetAggregation |
Gets the aggregation expression from the given expression
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| GetBetween |
Gets the condition matching values of the column between from and to
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| GetCase |
Returns statement for the CASE expressions.
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| GetCaseColumn |
Returns statement for column with case expressions.
This statement is used for evaluating a set of boolean expressions to determine the result. First case has highest priority.
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| GetCaseOrderBy(IEnumerableString) |
Returns order by statement based on case boolean expressions. First case has highest priority.
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| GetCaseOrderBy(String) |
Returns order by statement based on case boolean expressions. First case has highest priority.
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| GetCast |
Get the CAST expression.
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| GetColumnName |
Gets the column name from the given SQL column expression
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| GetComment |
Gets a multiline SQL comment for simple input text (must not contain any open comment sequence)
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| GetConvert |
Gets the convert expression.
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| GetDBSchemaOrDefault |
Returns DB object scheme from settings or default value.
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| GetIsNumeric |
Gets the ISNUMERIC expression.
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| GetJoin |
Gets the join expression
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| GetJoinType |
Gets the join expression
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| GetNestedQuery |
Gets a nested query using nested SELECT for further evaluation
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| GetOrderByColumnName(String) |
Gets the column name from the given SQL column expression
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| GetOrderByColumnName(String, String) |
Gets the column name from the given SQL column expression
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| GetParamCacheString |
Gets the parameters string.
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| GetParameterName |
Gets the parameter name
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| GetParamString |
Gets the parameters string.
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| GetResultsString |
Gets the results as a string for log.
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| GetRound |
Gets the round expression
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| GetRowNumber |
Gets the row number expression
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| GetSafeOwner |
Returns safe string representing DB owner.
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| GetSafeQueryString(String) |
Returns safe sql query string - escapes apostrophes and escapes wildcard characters _, %, [].
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| GetSafeQueryString(String, Boolean) |
Returns safe sql query string - escapes apostrophes and optionally escapes wildcard characters _, %, [].
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| GetSelectQuery |
Gets the general select query
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| GetSqlValue |
Gets the value representation for a SQL query text
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| GetValueExpression |
Gets the value expression from the given expression
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| GetWhereCondition(String, IEnumerableInt32, Boolean) |
Creates the where condition for the array of values.
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| GetWhereCondition(String, IEnumerableString, Boolean) |
Creates the where condition for the array of values.
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| GetWhereConditionT(String, IEnumerableString, Boolean, Boolean) |
Creates the where condition for the array of values.
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| GetWhereInConditionT |
Returns where condition in SQL syntax for collection of items.
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| HandleEmptyColumns |
Handles the empty columns constant by replacing it with empty string
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| IntersectQueries |
Returns the query created as an INTERSECT of the given queries.
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| IsMissing |
Returns true if the given value is missing or null.
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| IsMissingOrNull |
Returns true if the given value is missing or null.
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| IsSingleColumn |
Returns true, if the query output is a single column
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| JoinColumnList |
Joins the given column list. Columns are separated by comma.
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| MatchLikePattern |
Indicates whether string matches given SQL 'like' pattern.
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| MergeColumns(IEnumerableString, IEnumerableString, FuncString, String, Boolean, FuncString, String) |
Merges the sets of columns and makes sure that each column in the result is present only once.
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| MergeColumns(String, String, FuncString, String, Boolean, FuncString, String) |
Merges the sets of columns and makes sure that each column in the result is present only once.
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| ObjectsEqual |
Returns true if two objects are equal.
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| OrderByContains |
Returns true if the order by expression contains column sorted the specified way.
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| ParseColumn |
Gets the column name from the given SQL column expression
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| ParseColumnList |
Parses the given list of columns to a list (can handle also advanced columns containing functions like ISNULL(A, B) etc.).
If columns contains NO_COLUMNS, then NO_COLUMNS won't be present in result list.
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| PreparePagedQuery |
Prepares the query for paging, adds additional system columns and updates the columns list.
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| PreprocessQuery |
Preprocesses the give query.
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| ProcessPagedResults |
Processes the page results - Removes the system columns and gets the total records number.
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| QueriesEqual |
Returns true if two queries equal by their content. Ignores extra whitespaces and comments within the comparison
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| RemoveComments |
Removes single line and simple multiline comments from a SQL query
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| RemoveOwner |
Removes the owner from the given object name.
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| ReverseOrderBy |
Reverses the order by string by toggling between ASC and DESC.
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| UnionQueries(String) |
Returns the query created as an UNION ALL of given queries.
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| UnionQueries(String, Boolean) |
Returns the query created as an UNION of the given queries.
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See Also